Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| [hantavirus infections in ile-de-france]. | hantavirus infections, puumala serotype, is a well-known disease in the northeast of france, but not in the paris area, despite regularly diagnosed cases. a retrospective study was performed from january 1999 to december 2000 to assess the clinical and epidemiological characteristics of this disease in the "région ile-de-france". fourteen cases were diagnosed. all required hospitalisation. patients presented usually with high fever, pain, renal failure, moderate thrombocytopenia and, sometimes, ... | 2003 | 12891831 |
| [antigenic and genetic properties of seoul virus strains--a causative agent of hemorrhagic fever with renal syndrome]. | data on the circulation of a new genetic variant of seol virus, which was designated as "vladivostok" (the name of the place where it was isolated)--vdv, were obtained, by using the antigenic and genetic analysis of hantavirus strains isolated from patients with hemorrhagic fever with renal syndrome (hfrs) and from brown rats, and described in the present paper. a complete identity of nucleotide sequences of the m-segment fragment of isolates obtained from hfrs patients and of those obtained fro ... | 2003 | 12894473 |
| [seroepidemiological studies of zoonotic infections in hunters in southeastern austria--prevalences, risk factors, and preventive methods]. | the aim of this study was to investigate the seroprevalences to zoonotic pathogens in hunters, to propose preventive measures and to obtain more information about the occurrence of zoonotic pathogens in local wild animal populations. from 146 male and 3 female hunters originating from the south-eastern austrian federal states of styria and burgenland blood samples were taken and anamnestic data were obtained using a questionnaire. the serological investigations included the following viral, bact ... | 2003 | 12894685 |
| serological analysis of hemorrhagic fever with renal syndrome (hfrs) patients in far eastern russia and identification of the causative hantavirus genotype. | hemorrhagic fever with renal syndrome (hfrs) is endemic in east asia and europe. the disease is caused by several viruses belonging to the genus hantavirus, including the hantaan virus (htnv), seoul virus (seov), dobrava belgrade virus (dobv), and puumala virus (puuv). recently, htnv-related viruses, amur (amr) and far east (fe) genotypes were identified as causative agents of hfrs in far eastern russia. to investigate the epidemiology of hfrs and virus transmission, we collected sera from 17 ac ... | 2003 | 12898330 |
| hantaviruses in são paulo state, brazil. | 2003 | 12899143 | |
| vaccines against hantaviruses. | rodent-borne hantaviruses are etiologic agents for hemorrhagic fever with renal syndrome and hantavirus cardiopulmonary syndrome in the old world and new world, respectively. these often severe diseases are relatively uncommon in most parts of the world and are sufficiently genetically variable that widely cross-protective vaccines will probably need to be polyvalent. the current status of hantavirus vaccines shall be reviewed and both conventional and speculative new vaccine technologies that m ... | 2002 | 12901576 |
| multifactorial determination of hypertensive nephroangiosclerosis. | essential hypertension causes renal injury. hypertensive nephroangiosclerosis (hn) or hypertensive nephropathy are terms most commonly used to describe this renal pathology. although specific histological lesions occurring in affected kidneys are well known, pathogenesis of hypertension-related renal scarring is not completely understood. evidence exists to support the theory that other factors such as aging, black race or smoking, beside blood pressure, contribute to the development and progres ... | 2002 | 12590197 |
| emerging viruses: the case 'hantavirus'. | this review briefly summarises the recent knowledge about hantavirus infections and raises particular problems in hantavirus research that need further investigation. the following questions are addressed: (i) are hantaviruses distributed worldwide and what leads to new outbreaks, (ii) what is known about hantavirus evolution, (iii) how can hantavirus species be defined, (iv) what are the determinants of hantavirus pathogenesis in humans, and (v) what problems are associated with the development ... | 2002 | 12602350 |
| review of an inactivated vaccine against hantaviruses. | hantaviruses cause haemorrhagic fever with renal syndrome and result in severe morbidity and mortality in humans. safe and effective vaccines are needed to reduce the incidence of human illness. in this study, the immune response to an inactivated hantavirus vaccine was measured in 64 human volunteers for hantavax and 10 human volunteers for a hantaan-puumala virus combination vaccine at high risk of infection by virtue of their residence and occupation. | 2002 | 12602351 |
| characterization of expression of puumala virus nucleocapsid protein in transgenic plants. | transgenic plants expressing a foreign gene are a suitable system for the production of relevant immunogens in high amounts that can be used for the development of a new generation of vaccines against a variety of infectious diseases. in the present study, the expression of the nucleocapsid (n) protein of hantavirus serotype puumala in tobacco and potato plants was investigated. transgenic tobacco and potato plants were generated and established. these transgenic plants expressed the n protein o ... | 2002 | 12602352 |
| stop codon insertion restores the particle formation ability of hepatitis b virus core-hantavirus nucleocapsid protein fusions. | in recent years, epitopes of various origin have been inserted into the core protein of hepatitis b virus (hbc), allowing the formation of chimeric hbc particles. although the c-terminus of a c-terminally truncated hbc (hbc) tolerates the insertion of extended foreign sequences, the insertion capacity is still a limiting factor for the construction of multivalent vaccines. previously, we described a new system to generate hbc mosaic particles based on a read-through mechanism in an escherichia c ... | 2002 | 12602354 |
| [efficacy of amixine in experimental hantavirus infection]. | the experimental studies conducted on 2-week suckling mice infected with hantaan virus, strain 76-118) treated with oral and subcutaneous amoxine showed its prophylactic, therapeutical-and-prophylactic, and therapeutical efficiencies. oral amoxine exhibited the highest efficiency when used in a dose of 10 mg/kg-1 96 hours before infection and throughout the incubation period. the protective efficiency was 61%. subcutaneously, the agent was effective when three schemes for injection in a dose of ... | 2002 | 12522965 |
| hantavirus immunology. | two clinical syndromes are associated with hantavirus infection in humans: hemorrhagic fever with renal syndrome (hfrs) and hantavirus pulmonary syndrome (hps). autopsy findings typically reveal a common feature of increased permeability in microvascular beds, suggesting vascular endothelium is a prime target for virus infection. endothelial cells are susceptible to hantavirus infection; however, virus does not cause cytopathic effects, to explain increased endothelium permeability. therefore, i ... | 2002 | 12513931 |
| neonatal sex steroids affect responses to seoul virus infection in male but not female norway rats. | previous studies illustrate that after inoculation with seoul virus (i.e., the naturally occurring hantavirus found in norway rats), adult male rats produce higher antibody responses, exhibit higher th1 responses (i.e., igg2a, il-2, and ifn gamma), and shed virus longer than females, but these difference are not altered by manipulation of sex steroids in adulthood. to determine whether sex steroid hormones organize adult responses to hantavirus infection, at 2-4 days of age, male rats were gonad ... | 2002 | 12480503 |
| [hantaviruses--"exotic" viruses in germany]. | 2002 | 12487105 | |
| viral hemorrhagic fevers including hantavirus pulmonary syndrome in the americas. | the term viral hemorrhagic fever refers to an acute systemic illness with a propensity for bleeding and shock. the viral hemorrhagic fevers endemic in the americas include yellow fever, dengue hemorrhagic fever, the south american hemorrhagic fevers, hantavirus pulmonary syndrome, and hemorrhagic fever with renal syndrome. because these diseases are primarily zoonotic, the distribution of any given virus is generally restricted by the distribution of its natural reservoir or arthropod vector. a ... | 2002 | 12489291 |
| [changes in the epidemiology of infectious disease in chile: 1990-2000]. | 2002 | 12491839 | |
| puumala hantavirus infection in humans and in the reservoir host, ardennes region, france. | we compared the occurrence of nephropathia epidemica cases, over a multi-annual population cycle, in northeastern france with the hantavirus serology for bank voles captured in the same area. we discuss hypotheses to explain the pattern of infection in both humans and rodents and their synchrony. | 2002 | 12498675 |
| simulations in the mathematical modeling of the spread of the hantavirus. | the range of validity of a recently proposed deterministic (mean field) model of the spread of the hantavirus infection is studied with the help of monte carlo simulations for the evolution of mice populations. the simulation is found to reproduce earlier results on the average but to display additional behavior stemming from discreteness in mice number and from fluctuations of the finite size system. it is shown that mice diffusion affects those additional features of the simulation in a physic ... | 2002 | 12443236 |
| distribution of hantavirus foci in belgium. | during 1999 and 2000, we performed rodent captures on 15 sites all over belgium to evaluate the presence of hantaviruses in local rodent populations. viral antibody and rna detection was performed by elisa/focus reduction neutralisation test and rt-pcr, respectively. we found hantavirus-positive rodents on 13 out of 15 trapping sites and 3 rodent species were found positive for hantavirus infection. apart from puumala virus that was carried by clethrionomys glareolus, 2 additional rodent species ... | 2002 | 12443796 |
| andes virus infection of cynomolgus macaques. | andes virus (andv), a member of the genus hantavirus, is a causative agent of hantavirus pulmonary syndrome (hps) and is the only hantavirus known to be transmissible from person to person. hps is found in north and south america and is often fatal. to test the virulence of andv in nonhuman primates, we exposed cynomolgus macaques to andes virus, either intravenously or by aerosol. the monkeys did not manifest clinical disease but showed significant lymphocyte decreases between days 8 and 11 pos ... | 2002 | 12447754 |
| phylogenetic evidence for host switching in the evolution of hantaviruses carried by apodemus mice. | phylogenetic analysis of three hantaviruses: hantaan (htnv), dobrava (dobv), and the newly designated serotype/genotype saaremaa (saav) and their respective hosts, rodents of genus apodemus, reveals a discrepancy in the virus-host relationships. while all apodemus agrarius sequences from europe and the far east are monophyletic, saav (carried by the western subspecies of a. agrarius) shared the most recent ancestor with a. flavicollis-associated dobv virus, but not with htnv (carried by the east ... | 2002 | 12457975 |
| hantavirus pulmonary syndrome: a zebra worth knowing. | hantavirus pulmonary syndrome (hps) is a severe cardiopulmonary illness most often caused by the sin nombre virus, which is transmitted to humans by inhalation of aerosolized particles of rodent excreta or direct rodent contact. although hps is more common in the western united states, cases have been identified in 31 states. the illness begins as a nonspecific febrile prodrome, sharing many of its initial symptoms with other more common viral infections. patients then quickly develop noncardiog ... | 2002 | 12358213 |
| hantaan virus antibody prevalence in rodent populations of several provinces of northeastern thailand. | we conducted a serological survey of 632 rodents from the northeast region of thailand in order to assess the presence of hantaan-like viruses that may be a risk to the human population. rodents were collected from rice fields, houses and domestic gardens in five northeastern provinces and tested for igg reacting sera to hantaan antigen using enzyme-linked immunoassays. the overall prevalence of hantavirus infection in rodents was 2.1% (13/632). species that tested positive included bandicota in ... | 2002 | 12358618 |
| experimental infection of the sigmodon alstoni cotton rat with caño delgadito virus, a south american hantavirus. | forty-eight sigmodon alstoni (alston's cotton rat) were inoculated with caño delgadito (cdg) virus to extend our knowledge and understanding of the natural host relationships of the hantaviruses indigenous to the americas. infectious cdg virus was recovered from oropharyngeal secretions, urine, or solid tissues of nine of 12 animals killed on day 9 post-inoculation (pi), 14 of 24 animals killed on day 18 or 27 pi, and none of 12 animals killed on day 54 pi. in addition, virus-specific rna was de ... | 2002 | 12363052 |
| complete nucleotide sequence of a chilean hantavirus. | we have determined the genomic sequence of an andes virus (andv) strain isolated from an infected oligoryzomys longicaudatus rodent trapped in chile in 1997. this strain, for which we propose the designation chile r123, reproduces essential attributes of hantavirus pulmonary syndrome (hps) when injected intramuscularly into laboratory hamsters (hooper et al., virology 289 (2001) 6-14). the l, m, and s segment sequences of chile r123 are 6562, 3671, and 1871 nt long, respectively, with an overall ... | 2002 | 12367756 |
| hantavirus infection of dendritic cells. | dendritic cells (dcs) play a pivotal role as antigen-presenting cells in the antiviral immune response. here we show that hantaan virus (htnv), which belongs to the bunyaviridae family (genus hantavirus) and causes hemorrhagic fever with renal syndrome, productively infects human dcs in vitro. in the course of htnv infection, dcs did not show any cytopathic effect and viral replication did not induce cell lysis or apoptosis. furthermore, htnv did not affect apoptosis-inducing signals that are im ... | 2002 | 12368315 |
| pathogenic and nonpathogenic hantaviruses differentially regulate endothelial cell responses. | hantaviruses cause two human diseases: hemorrhagic fever with renal syndrome (hfrs) and hantavirus pulmonary syndrome (hps). hantaviruses infect human endothelial cells but cause little or no damage to the infected endothelium. we analyzed with affymetrix dna arrays (santa clara, ca) the endothelial cell transcriptional responses directed by hantaviruses associated with hps [new york-1 virus (ny-1v)], hfrs [hantaan virus (htnv)], or by a hantavirus not associated with human disease [prospect hil ... | 2002 | 12368479 |
| viral pneumonias in adults: radiologic and pathologic findings. | numerous viruses, including influenza virus, measles virus, hantavirus, adenovirus, herpesviruses, varicella-zoster virus, cytomegalovirus, and epstein-barr virus, can cause lower respiratory tract infection in adults. viral pneumonia in adults can be classified into two clinical groups: so-called atypical pneumonia in otherwise healthy hosts and viral pneumonia in immunocompromised hosts. influenza virus types a and b cause most cases of viral pneumonia in immunocompetent adults. immunocompromi ... | 2002 | 12376607 |
| pathogenic hantaviruses selectively inhibit beta3 integrin directed endothelial cell migration. | hantaviruses cause two diseases of man, hemorrhagic fever with renal syndrome (hfrs) and hantavirus pulmonary syndrome (hps). pathogenic and non-pathogenic hantaviruses use beta3 and beta1 integrins, respectively, to enter endothelial cells. beta3 integrins were recently reported to bind receptors that regulate vascular permeability suggesting that hantavirus beta3 integrin interactions may regulate endothelial cell function and contribute to viral pathogenesis. in this study we investigated the ... | 2002 | 12376753 |
| rodent host specificity of european hantaviruses: evidence of puumala virus interspecific spillover. | in order to investigate rodent host specificity of european hantaviruses, experimental infection of colonized and wild-trapped rodents was performed. in addition to the natural rodent reservoir, clethrionomys glareolus, puumala hantavirus (puuv) could infect colonized microtus agrestis and lemmus sibiricus, but not syrian hamsters or balb/c mice. neither c. glareolus, nor m. agrestis, could be readily infected by tula hantavirus (tulv). wild-trapped apodemus flavicollis and a. agrarius, the natu ... | 2002 | 12376967 |
| hantaviruses in estonia. | human serum samples collected from healthy individuals in 14 counties were screened by elisa in order to investigate the presence of hantavirus infections in estonia. out of 1,234 serum samples, 124 were found positive for hantavirus-specific igg and were subsequently serotyped by a focus reduction neutralization test. a total of 112 samples neutralized at least one of the examined hantaviruses-puumala (puuv), saaremaa (saav), dobrava (dobv), hantaan, and seoul viruses-and thereby, the focus red ... | 2002 | 12376968 |
| serological evidence of human hantavirus infections in indonesia. | 2002 | 12382098 | |
| hantavirus pulmonary syndrome in uberaba, minas gerais, brazil. | this report describes the epidemiological and clinical-evolutive characteristics of eight patients with hantavirus pulmonary syndrome (hps) in uberaba, minas gerais, brazil. a positive history of contact with rodents was present in 100% of the cases. the time between the onset of symptoms and hospital care was, on average, 3.6 days. all patients showed clinical and laboratory findings suggestive of hps. elevated urea and creatinine levels were observed in 6 (75%) cases, po2 was < 60 mmhg in 100% ... | 2002 | 12386696 |
| exposure to rodents and rodent-borne viruses among persons with elevated occupational risk. | persons who have frequent contact with rodents as part of their occupation may be at increased risk of exposure to rodent-borne viruses such as sin nombre virus (snv), the agent of hantavirus pulmonary syndrome, and whitewater arroyo virus (wwa), a new world arenavirus. eighty-one persons with possible occupational exposure to rodents completed questionnaires and provided specimens for serologic testing. seventy-two participants reported handling rodents as part of their job. the mean total numb ... | 2002 | 12391776 |
| dinara - new natural focus of hemorrhagic fever with renal syndrome in croatia. | to investigate the characteristics and determine risk factors for hantanvirus infection in natural focus of hemorrhagic fever with renal syndrome (hfrs) on the dinara mountain, where outbreak of disease emerged among croatian soldiers in 1995, and to describe the features of hfrs acquired on the dinara mountain and determine the scale of the largest hfrs epidemic so far in croatia. | 2002 | 12402400 |
| epidemiologic characteristics and military implications of hemorrhagic fever with renal syndrome in croatia. | to analyze epidemiologic characteristics of hemorrhagic fever with renal syndrome in croatia, including military implications of the disease and measures for its prevention. | 2002 | 12402401 |
| maporal viral infection in the syrian golden hamster: a model of hantavirus pulmonary syndrome. | hantavirus pulmonary syndrome (hps) is a severe and often fatal rodent-borne zoonosis. maporal (map) virus is a newly discovered hantavirus that originally was isolated from an arboreal rice rat captured in central venezuela. the results of this study indicate that map virus in the syrian golden hamster (mesocricetus auratus) can cause a disease that is clinically and pathologically remarkably similar to hps. the similarities include the time course of clinical disease, presence of virus-specifi ... | 2002 | 12404153 |
| novel and challenging infections of man. a brief overview. | the greatest challenge to human health of recent times is the pandemic caused by the retroviruses known as hiv1 and hiv2. these have unleashed a plethora of opportunistic infections with organisms ranging from other viruses to helminths, some of which are newly recognised taxa or organisms never before identified as serious pathogens of man. animal and bird migration as well as human travel and international trade have extended, to an alarming degree, the dissemination of other viral infections. ... | 2002 | 12404808 |
| the in vitro and in vivo protective activity of monoclonal antibodies directed against hantaan virus: potential application for immunotherapy and passive immunization. | hantaan virus (htnv), a member of the genus hantavirus, family bunyaviridae, is an etiologic agent causing a serious human disease, hemorrhagic fever with renal syndrome (hfrs), with a mortality as high as 15% and is also a potential bioterrorism agent. it is urgently needed to develop anti-htnv-neutralizing monoclonal antibodies (mabs) for treatment and prevention of htnv infection. in the present study, 18 murine mabs directed against htnv strain chen were generated and characterized. among th ... | 2002 | 12408987 |
| emerging and re-emerging infectious diseases. | in human history, numerous infectious diseases have emerged and re-emerged. aside from many others, the so-called 'exotic' agents in particular are a threat to our public health systems due to limited experience in case management and lack of appropriate resources. many of these agents are zoonotic in origin and transmitted from animals to man either directly or via vectors. the reservoirs are often infected subclinically or asymptomatically and the distribution of the diseases basically reflect ... | 2002 | 12410344 |
| discriminators between hantavirus-infected and -uninfected persons enrolled in a trial of intravenous ribavirin for presumptive hantavirus pulmonary syndrome. | to provide a potentially therapeutic intervention and to collect clinical and laboratory data during an outbreak of hantavirus pulmonary syndrome (hps), 140 patients from the united states with suspected hps were enrolled for investigational intravenous ribavirin treatment. hps was subsequently laboratory confirmed in 30 persons and not confirmed in 105 persons with adequate specimens. patients with hps were significantly more likely than were hantavirus-negative patients to report myalgias from ... | 2002 | 11774075 |
| the assessment of human health risks from rodent-borne diseases by means of ecological studies of rodent reservoirs. | zoonoses in general, and more specifically rodent-borne diseases, have proven to be of increasing importance in recent decades. the study of vector biology, therefore, is the foundation for understanding the infection mechanisms for humans. military operations on the european and asian continent have been substantially affected by hantavirus infections during world war i and world war ii, the korean war, and the more recent events in bosnia. the recently discovered hantavirus serotypes with high ... | 2002 | 11799818 |
| increased glomerular permeability in patients with nephropathia epidemica caused by puumala hantavirus. | nephropathia epidemica (ne) is the scandinavian type of haemorrhagic fever with renal syndrome. usually heavy transient proteinuria is present at the onset of the disease. | 2002 | 11812874 |
| the rna binding domain of the hantaan virus n protein maps to a central, conserved region. | the nucleocapsid (n) protein of hantaviruses encapsidates both viral genomic and antigenomic rnas, although only the genomic viral rna (vrna) is packaged into virions. to define the domain within the hantaan virus (htnv) n protein that mediates these interactions, 14 n- and c-terminal deletion constructs were cloned into a bacterial expression vector, expressed, and purified to homogeneity. each protein was examined for its ability to bind the htnv s segment vrna with filter binding and gel elec ... | 2002 | 11884555 |
| transfection-mediated generation of functionally competent tula hantavirus with recombinant s rna segment. | since the discovery of rna recombination in polioviruses, there has been a general belief that this mechanism operates only in positive-sense rna viruses. recently, studying wild-type tula hantavirus, we observed a mosaic-like structure of the s rna segment that was consistent with generation by recombination between viruses from two genetic lineages. here we show transfection-mediated rescue of tula virus carrying recombinant s rna segment. independent attempts yielded s rna molecules of simila ... | 2002 | 11889055 |
| [puumala virus infection (nephropathia epidemica) as different diagnosis of acute renal failure]. | puumala virus infection (nephropathia epidemica) as different diagnosis of acute renal failure. | 2002 | 11894176 |
| serological divergence of dobrava and saaremaa hantaviruses: evidence for two distinct serotypes. | in order to investigate the serological relationship of dobrava hantavirus (dobv, originating from slovenia) and the dobrava-like saaremaa virus (saav, recently discovered in estonia) we analysed 37 human serum samples, 24 from estonia and 13 from the balkans, by focus reduction neutralization test (frnt). most of the estonian sera (19), including all sera from saaremaa island (12), reacted with higher frnt end-point titres to the local saav; the majority of them (15 and 11, respectively), with ... | 2002 | 11895097 |
| analysis of hantavirus genetic diversity in argentina: s segment-derived phylogeny. | nucleotide sequences were determined for the complete s genome segments of the six distinct hantavirus genotypes from argentina and for two cell culture-isolated andes virus strains from chile. phylogenetic analysis indicates that, although divergent from each other, all argentinian hantavirus genotypes group together and form a novel phylogenetic clade with the andes virus. the previously characterized south american hantaviruses laguna negra virus and rio mamore virus make up another clade tha ... | 2002 | 11907216 |
| hantavirus nucleocapsid protein interacts with the fas-mediated apoptosis enhancer daxx. | hantaviruses cause two severe diseases, haemorrhagic fever with renal syndrome in eurasia and hantavirus pulmonary syndrome in the americas. to understand more about the molecular mechanisms that lead to these diseases, the associations of puumala virus nucleocapsid protein (puuv-n) with cellular proteins were studied by yeast two-hybrid screening. daxx, known as an apoptosis enhancer, was identified from a hela cdna library and its interaction with puuv-n was confirmed by gst pull-down assay, c ... | 2002 | 11907324 |
| identification of a cell surface 30 kda protein as a candidate receptor for hantaan virus. | cellular receptors play an important role in virus pathogenesis. as a first step in virus infection, viruses attach to specific receptors on the surface of cells; hantaan virus infects susceptible cells by attaching to a receptor located on the cell surface. to date, the identity of the hantaan virus host cell receptor remains unknown. to determine the protein on the cell surface to which hantaan virus binds, a virus overlay protein-binding assay was performed with radiolabelled virus. a 30 kda ... | 2002 | 11907325 |
| characteristics of puumala and dobrava infections in croatia. | in this study, two different hantaviruses, puumala virus (puuv) and dobrava virus (dobv), were demonstrated for the first time to coexist and cause hemorrhagic fever with renal syndrome (hfrs) in croatia. phylogenetic analysis showed some differences among the nucleotide sequences of puuv originating from dinara mountain, which was more closely related to austrian puuv than other croatian puuv from mala kapela mountain. more consistency was found among the croatian dobv. hfrs was verified in 85 ... | 2002 | 11857535 |
| acute disseminated encephalomyelitis following nephropathia epidemica. | acute disseminated encephalomyelitis (adem) is an acute monophasic inflammatory and demyelinating disease of the central nervous system (cns) occurring days to weeks after a virus infection or vaccination. nephropathia epidemica (ne) is a haemorrhagic fever with renal syndrome caused by puumala virus, with endemic regions in europe, especially scandinavia and western russia. we describe a case of severe nephropathia epidemica requiring dialysis, followed by severe cns symptoms caused by adem. to ... | 2002 | 11939950 |
| hantavirus pulmonary syndrome: the new american hemorrhagic fever. | the recognition of hantavirus pulmonary syndrome (hps) after the investigation of a cluster of unexplained respiratory deaths in the southwestern united states during the spring of 1993 showcased our ability to recognize new and emerging diseases, given the correct juxtaposition of a new clinical entity with circumscribed epidemiologic features that are analyzed with novel diagnostic methods. in less than a decade, hps has become established as a pan-american zoonosis due to numerous viruses mai ... | 2002 | 11941549 |
| herpesvirus hijacks an integrin. | 2002 | 11944033 | |
| mapping of b-cell epitopes in the nucleocapsid protein of puumala hantavirus. | hantavirus nucleocapsid protein (n) has been proven to induce highly protective immune responses in animal models. the knowledge on the mechanisms behind n-induced protection is still limited, although recent data suggest that both cellular and humoral immune responses are of importance. for a detailed b-cell epitope mapping of puumala hantavirus (puuv) n, we used recombinant n derivatives of the russian strain cg18-20 and the swedish strain vranica/hällnäs, as well as overlapping synthetic pept ... | 2002 | 11952140 |
| [detection of the expression of alpha3-integrin on hantavirus permissive cells]. | to express and purify human alpha3-integrin to serve as the antigen to prepare its antibody and to separate the vero cell clones without expression of alpha3-integrin. | 2002 | 11986744 |
| [molecular cloning,nucleotides sequence and transient expression of s and m genome segment of hantavirus strain 84fli]. | to sequence, analyze and express the nucleotide sequences of s and m segments of hantavirus strain 84fli. | 2002 | 11986746 |
| [serologic detection of hantavirus antibodies]. | within the framework of diagnosis of highly dangerous infections in the army of the czech republic serological assessment of hantaviral antibodies was introduced. because military units in the field can be in contact with sources of hantaviral infections, the authors investigated this population sample. in 1999-2000 a total of 542 healthy subjects were examined (age 20-40 years). hantaviral antibodies were detected in 9. in three antibodies against the serotype hantaan were found, in two antibod ... | 2002 | 11987584 |
| sequence and expression analysis of deer mouse interferon-gamma, interleukin-10, tumor necrosis factor, and lymphotoxin-alpha. | deer mice (peromyscus maniculatus) are the principal host species of sin nombre (sn) virus, the primary etiologic agent of hantavirus cardiopulmonary syndrome in north america. the disease is a cytokine-mediated immunopathology characterized by pulmonary mononuclear infiltrates without discernible viral pathology. infected deer mice remain life-long carriers and virus is found in many organs, including the lungs, but without pathology. it is unclear how deer mice respond to sn virus because no t ... | 2002 | 11991673 |
| [a new case of hantavirus disease in spain?]. | 2002 | 11996751 | |
| tula hantavirus in belgium. | european common voles (microtus arvalis), captured in belgium in 1999, were proven by molecular as well as by serological techniques to be infected with tula hantavirus (tulv). this is the first evidence for the presence of tulv in this country. no indication of spill-over infections of puumala virus, known to be highly endemic among bank voles (clethrionomys glareolus) within the same geographical regions as the trapped tulv-infected common voles, was observed. together with previous reports on ... | 2002 | 12002543 |
| hantavirus nucleocapsid protein coiled-coil domains. | the nucleocapsid (n) proteins of hantaviruses such as the sin nombre virus (snv) bind to membranes and viral rnas, associate with transcription and replication complexes, and oligomerize during the process of virus assembly. n proteins trimerize in vitro and in vivo, and associate via assembly domains at their amino- and carboxyl-terminal ends. because structure prediction algorithms suggested that n protein residues 3-75 form two coiled-coil motifs separated by an intervening kink or turn seque ... | 2002 | 12019266 |
| hantaviruses: an overview. | hantaviruses are a newly emerging group of rodent-borne viruses that have significant zoonotic potential. human infection by hantaviruses can result in profound morbidity and mortality, with death rates as high as 50%, and potentially long-term cardiovascular consequences. hantaviruses are carried by peridomestic and wild rodents worldwide and have occasionally been linked to infections in laboratory rodents. because these viruses have been associated with significant human disease, they have be ... | 2002 | 12022401 |
| hantavirus infection with marked sinus bradycardia, taiwan. | 2002 | 12023927 | |
| double trouble: hemorrhagic fever with renal syndrome and leptospirosis. | the clinical picture of hemorrhagic fever with renal syndrome can closely mimic that of unicteric leptospirosis and vice versa. this is the first description of dual infection with dobrava virus and leptospira and alteration of immune parameters in a croatian soldier. | 2002 | 12030403 |
| assessment of ecologic and biologic factors leading to hantavirus pulmonary syndrome, colorado, u.s.a. | to understand the ecologic parameters of sin nombre virus (snv; family bunyaviridae, genus hantavirus) infections in the deer mouse (peromyscus maniculatus), environmental variables impacting the rodent populations, and the conditions under which snv is amplified. this may help us understand the antecedents of human risk for developing hantavirus pulmonary syndrome (hps) as a consequence of snv infection. | 2002 | 12035141 |
| hunting down hantavirus. | 2002 | 12035655 | |
| genetics of hantaviruses: implications to taxonomy. | hantaviruses (genus hantavirus, family bunyaviridae) represent a prime example of emerging viruses. since isolation of the prototype hantaan virus in the late 70s more than 20 new species have been described and the number is increasing fast thus demanding for a more refined classification. taking into account that hantaviruses are difficult to isolate in cell culture, one should not be surprised that most of the "newcomers" were first described as distinct hantavirus genotypes. moreover, the on ... | 2002 | 12038679 |
| [seroprevalence of antibodies against hantavirus in 10 communities of the ix region of chile where hantavirus infection were diagnosed]. | thirty six cases of clinical hantavirus cardiopulmonary syndrome occurred in the ix region of chile. most of these patients were young males, farm or timber workers, who lived near the andes mountain chain. | 2002 | 12043366 |
| identification of tula hantavirus in pitymys subterraneus captured in the cacak region of serbia-yugoslavia. | atypical serum neutralizing antibody responses to prototype strains of puumala viruses in some patients with hemorrhagic fever with renal syndrome (hfrs) have long suggested the existence of other hantaviruses in the balkans. | 2002 | 12044299 |
| cross-protection against challenge with puumala virus after immunization with nucleocapsid proteins from different hantaviruses. | hantaviruses are rodent-borne agents that cause hemorrhagic fever with renal syndrome or hantavirus pulmonary syndrome in humans. the nucleocapsid protein (n) is relatively conserved among hantaviruses and highly immunogenic in both laboratory animals and humans, and it has been shown to induce efficient protective immunity in animal models. to investigate the ability of recombinant n (rn) from different hantaviruses to elicit cross-protection, we immunized bank voles with rn from puumala (puuv) ... | 2002 | 12050380 |
| hantavirus-specific antibodies in rodents and humans living in kuwait. | hantaviruses are found in widely scattered areas of the world and are transmitted by inhalation of virus-contaminated aerosols of rodent excreta. the present study was undertaken in kuwait to investigate the serological evidence for hantavirus infection in rodents and humans. sera were collected from 283 wild rodents and 183 human subjects (46 kuwaitis and 137 non-kuwaitis). the rodent sera were investigated for the presence of antibodies against the seoul and puumala strains of the hantaviruses ... | 2002 | 12052569 |
| acute renal failure caused by leptospirosis and hantavirus infection in an urban hospital. | background: leptospirosis (ls) and hantavirus (hv) infection have many common clinical manifestations, including acute renal failure. in as much as clinical experience with these diseases is quite limited in urban centers, we identified cases of leptospira and hv-induced acute renal failure and compared the clinical course and evolution of these diseases. methods: patients hospitalized with acute renal failure, suspected to be caused by infection, were retrospectively studied over a 13-year peri ... | 2002 | 12067823 |
| tula virus infection associated with fever and exanthema after a wild rodent bite. | reported here is the first case of human acute infection with tula virus, which occurred in a 12-year-old boy in switzerland. this hantavirus had been considered apathogenic to humans, and in switzerland only tulv-genome sequences have been demonstrated in wild rodents to date. in this case, paronychia, fever and exanthema occurred after the patient was bitten by a wild rodent, indicating an unusual route of hantavirus transmission. thus, tula virus infection should be taken into account in pati ... | 2002 | 12072943 |
| viral agents as biological weapons and agents of bioterrorism. | multiple viral agents have been classified by the cdc as potential weapons of mass destruction or agents for biologic terrorism. agents such as smallpox, viral hemorrhagic fever viruses, agents of viral encephalitis, and others are of concern because they are highly infectious and relatively easy to produce. although dispersion might be difficult, the risk is magnified by the fact that large populations are susceptible to these agents and only limited treatment and vaccination strategies exist. ... | 2002 | 12074486 |
| genetic vaccines protect against sin nombre hantavirus challenge in the deer mouse (peromyscus maniculatus). | we used a deer mouse (peromyscus maniculatus) infection model to test the protective efficacy of genetic vaccine candidates for sin nombre (sn) virus that were known to provoke immunological responses in balb/c mice (bharadwaj et al., vaccine 17, 2836-2843, 1999 ). protective epitopes were localized in each of four overlapping cdna fragments that encoded portions of the sn virus g1 glycoprotein antigen; the nucleocapsid gene also was protective. the protective efficacy of glycoprotein gene fragm ... | 2002 | 12075094 |
| [hantavirus in human and rodent population in an endemic area for hantavirus pulmonary syndrome in argentina]. | this paper analyzed the prevalence and distribution of serological reactivity to hantavirus (antibody against andes virus) of human population exposed to hantavirus and rodents trapped in the studied area. this study was developed in salta (orán and san martín departments), area with the highest incidence for hantavirus pulmonary syndrome (hps) in argentina. in december 1997, 453 healthy people were studied by serology and 39 rodents by serology and pcr. the studied individuals were distributed ... | 2002 | 11965841 |
| andes virus and first case report of bermejo virus causing fatal pulmonary syndrome. | two suspected hantavirus pulmonary syndrome (hps) cases from bolivia occurred in may and july 2000 and were confirmed by enzyme-linked immunosorbent assay (elisa)-andes using n-andes recombinant antigen serology. clot rnas from the two patients were subjected to reverse transcription-polymerase chain reaction (pcr) amplification and sequencing. we describe two characterized cases of hps. one was caused by infection with bermejo virus and the other with andes nort viral lineage, both previously o ... | 2002 | 11971782 |
| emerging infectious diseases in wildlife. | the processes which give rise to emerging infectious diseases of wildlife can be categorised as follows: ecosystem alterations of anthropogenic or natural origin; movement of pathogens or vectors, via human or natural agency; and changes in microbes or in the recognition of emerging pathogens due to advances in the techniques of epidemiology. these are simplistic divisions because factors influencing the emergence of diseases of wild animals generally fall into more than one category. mycoplasmo ... | 2002 | 11974625 |
| [changes in the epidemiology of infectious diseases in chile from 1990 to 2000]. | in the last decade in chile, there was a large reduction in the rate of communicable diseases, especially typhoid fever, and those preventable through the universal vaccination programs. exceptions were hepatitis a and pertussis. the reduction in tuberculosis, has lead the country to a threshold in which the elimination of tuberculosis as a public health problem is reachable. the hiv epidemic is still expanding, at higher rate among women and heterosexual men, keeping drug addiction as a low ran ... | 2002 | 12090099 |
| first human isolate of hantavirus (andes virus) in the americas. | we isolated andes virus (formal name: andes virus [andv], a species in the genus hantavirus), from serum of an asymptomatic 10-year-old chilean boy who died 6 days later of hantavirus pulmonary syndrome (hps). the serum was obtained 12 days after his grandmother died from hps and 2 days before he became febrile. no hantavirus immunoglobulin (ig) g or igm antibodies were detected in the serum sample. after three blind passages, andv antigens were detected in vero e6 cells by immunofluorescence as ... | 2002 | 12095430 |
| shedding and intracage transmission of sin nombre hantavirus in the deer mouse (peromyscus maniculatus) model. | the mechanism(s) by which sin nombre (sn) hantavirus is maintained in deer mouse populations is unclear. field studies indicate that transmission occurs primarily if not exclusively via a horizontal mechanism. using an experimental deer mouse infection model in an outdoor laboratory, we tested whether infected rodents shed sn virus in urine, feces, and saliva, whether infected mice transmit infection to naïve cage mates, and whether infected dams are able to vertically transmit virus or antibody ... | 2002 | 12097572 |
| elevated generation of reactive oxygen/nitrogen species in hantavirus cardiopulmonary syndrome. | hantavirus cardiopulmonary syndrome (hcps) is a life-threatening respiratory disease characterized by profound pulmonary edema and myocardial depression. most cases of hcps in north america are caused by sin nombre virus (snv), which is carried asymptomatically by deer mice (peromyscus maniculatus). the underlying pathophysiology of hcps is poorly understood. we hypothesized that pathogenic snv infection results in increased generation of reactive oxygen/nitrogen species (rons), which contribute ... | 2002 | 12134039 |
| genetic characterization of hantaviruses transmitted by the korean field mouse (apodemus peninsulae), far east russia. | in an epizootiologic survey of 122 rodents captured in vladivostok, russia, antibodies positive for hantavirus were found in apodemus peninsulae (4/70), a. agrarius (1/39), and clethrionomys rufocanus (1/8). the hantavirus sequences identified in two seropositive a. peninsulae and two patients with hemorrhagic fever with renal syndrome (hfrs) from the primorye region of far east russia were designated as solovey and primorye, respectively. the nucleotide sequences of the solovey, primorye, and a ... | 2002 | 12141960 |
| hantaan virus infection causes an acute neurological disease that is fatal in adult laboratory mice. | hantaan virus, the etiological agent of korean hemorrhagic fever, is transmitted to humans from persistently infected mice (apodemus agrarius), which serve as the primary reservoir. here we demonstrate that several strains of adult mus musculus domesticus (c57bl/6, balb/c, akr/j, and sjl/j) were susceptible to hantaan virus infection when infected intraperitoneally. first clinical signs were loss of weight, ruffled fur, and reduced activity, which were followed by neurological symptoms, such as ... | 2002 | 12163608 |
| [epidemic nephropathy. an important differential diagnosis of acute renal failure in reutlingen, an endemic area]. | hantavirus ("epidemic") nephropathy (hn), or hemorrhagic fever with renal syndrome (who nomenclature), is an infection caused by strains (e.g. puumala) of hantavirus, which is often accompanied by acute renal failure. although its typical symptomatology has been fully reported, it is rarely included in the differential diagnosis of renal nephropathy. this study investigated whether, in the presence of typical symptoms, specific search for a certain constellation of laboratory values in associati ... | 2002 | 12183800 |
| complete nucleotide sequence of the m rna segment of andes virus and analysis of the variability of the termini of the virus s, m and l rna segments. | hantavirus pulmonary syndrome (hps) has been recognized increasingly as a significant public health problem in south america since andes virus was first discovered in argentina. here, the isolation of andes virus is reported from an infected rodent captured in argentina in close vicinity to the place of the first hps case, ah1. the complete nucleotide sequences of the virus m segment, partial l segment and the termini of the s, m and l segment genome rnas were determined. the andes virus m rna s ... | 2002 | 12185264 |
| hantavirus pulmonary syndrome--united states: updated recommendations for risk reduction. centers for disease control and prevention. | this report provides updated recommendations for prevention and control of hantavirus infections associated with rodents in the united states. it supersedes the previous report (cdc. hantavirus infection--southwestern united states: interim recommendations for risk reduction. mmwr 1993; 42[no. rr-11]: 1-13). these recommendations are based on principles of rodent and infection control, and accumulating evidence that most infections result from exposure, in closed spaces, to active infestations o ... | 2002 | 12194506 |
| demographic factors associated with hantavirus infection in bank voles (clethrionomys glareolus). | the bank vole (clethrionomys glareolus) is the natural reservoir of puumala virus (puuv), a species in the genus hantavirus. puuv is the etiologic agent of nephropathia epidemica, a mild form of hemorrhagic fever with renal syndrome. factors that influence hantavirus transmission within host populations are not well understood. we evaluated a number of factors influencing on the association of increased puuv infection in bank voles captured in a region in northern sweden endemic for the virus. l ... | 2002 | 12194768 |
| behavioral, physiologic, and habitat influences on the dynamics of puumala virus infection in bank voles (clethrionomys glareolus). | populations of bank voles (clethrionomys glareolus) were monitored during a 4-year study in southern belgium to assess the influence of agonistic behavior, reproductive status, mobility, and distribution of the rodents on the dynamics of puumala virus (abbreviation: puuv; genus: hantavirus) infection. concordance was high between data from serologic testing and results of viral rna detection. wounds resulting from biting or scratching were observed mainly in adult rodents. hantavirus infection i ... | 2002 | 12194769 |
| human leukocyte antigen-b8-dr3 is a more important risk factor for severe puumala hantavirus infection than the tumor necrosis factor-alpha(-308) g/a polymorphism. | the tumor necrosis factor (tnf)-alpha(-308) g/a polymorphism (tnf-2) is in linkage disequilibrium with the human leukocyte antigen (hla)-b8-dr3 haplotype. both factors have been associated with severe puumala hantavirus-induced nephropathia epidemica (ne). to examine which part of this extended haplotype might show the strongest association with the outcome of ne, the hla-b, hla-drb1, and tnf-alpha(-308) alleles in 116 hospital-treated patients with ne were analyzed. the findings pointing to cli ... | 2002 | 12198621 |
| golgi localization of hantaan virus glycoproteins requires coexpression of g1 and g2. | the membrane glycoproteins g1 and g2 of hantaan virus (htnv; family bunyaviridae) are encoded on the m rna genome segment as a precursor polypeptide that is cotranslationally cleaved by host proteases. g1 and g2 accumulate in the golgi complex in cells following either virus infection or transfection with m segment cdna. however, there are conflicting reports in the literature concerning the golgi targeting of separately expressed g1. to resolve these differences, a series of m segment and g1 co ... | 2002 | 12202203 |
| long-lived memory t lymphocyte responses after hantavirus infection. | puumala virus (puuv) is a hantavirus that causes hemorrhagic fever with renal syndrome (hfrs), which is an important public health problem in large parts of europe. we examined the memory cytolytic t lymphocyte (ctl) responses in 13 finnish individuals who had hfrs between 1984 and 1995. in seven of these donors, we detected virus-specific ctl responses against the puuv nucleocapsid (n) protein after in vitro stimulation with puuv. six novel cd8(+) ctl epitopes were defined on the n protein and ... | 2002 | 12208874 |
| pcr-generated linear dna fragments utilized as a hantavirus dna vaccine. | the field of dna vaccines has grown rapidly, and since most such vaccines involve the inoculation of large circular dna molecules previously propagated in bacteria, several inconveniences (e.g. the presence of antibiotic resistance genes, impurities from bacterial cultures or inefficient uptake of the large and bulky plasmid dna molecules to the nucleus) are debated. in this study, we have explored the possibility of using smaller and more flexible pcr-generated linear dna fragments instead. pho ... | 2002 | 12213408 |
| [results of study of a combined focus of leptospirosis and hantavirus infection in the primor'e territory]. | survey of the circulation and spread of causative agents of the infection among wild rodents may predict the activation of an epizootic process and the aggravation of an epidemic situation. the status of a combined focus of leptospirosis and hantavirus infection in the primorye territory was studied. it was found that mixed infection may run in pocket mice (phascogalinae) under natural conditions. | 2002 | 12214522 |
| serological evidence of hantavirus in humans and rodents in barbados. | 2002 | 12217714 | |
| encephalitis due to a hantavirus infection. | 2002 | 12217734 | |
| andes virus associated with hantavirus pulmonary syndrome in northern argentina and determination of the precise site of infection. | hantavirus pulmonary syndrome (hps) has been documented in the salta and jujuy provinces of northern argentina since 1991 and 1997, respectively, accounting for almost 50% of the cases of hps reported in this country. andes (and) virus, specifically the and virus nort lineage, was previously associated with human disease in this region. genetic analysis of viral medium rna segments obtained from 18 hps cases showed the existence of three and virus nort sublineages co-circulating in these two pro ... | 2002 | 12224579 |
| hantavirus infections in latvia. | in order to investigate the presence of hantavirus infections in latvia, 333 randomly selected human serum samples were screened using an enzyme-linked immunoassay. fifteen samples were positive for hantavirus-specific igg and were subsequently serotyped using a focus reduction neutralization test. fourteen of these samples neutralized at least one of the hantaviruses included in the test, indicating a 4.2% overall seroprevalence in latvia. among 14 focus reduction neutralization test-positive s ... | 2002 | 12226698 |