| [the circulation of viruses of the california encephalitis and bunyamwera groups (bunyaviridae, bunyavirus) on the northeastern russian plain]. | in the komi assr, 102.2 thousand mosquitoes, 207 small mammals, 1487 blood serum specimens from people, 793 cow blood sera, 140 blood serum specimens from reindeer were collected in june-august, 1988. twenty seven virus strains isolated from mosquitoes were classified into bunyaviridae family according to the data of electron microscopic studies. identification of the isolates by cft and ifa showed 18 of the strains to belong to california encephalitis complex and 9 to bunyamwera complex. serolo ... | 1991 | 1677507 |
| [experimental demonstration of the possibility of batai virus persistence in hibernating female mosquitoes of the genus anopheles (diptera: culicidae)]. | | 1988 | 3193918 |
| [pathogenic properties of the leiv23 astrakhan strain of batai virus for primates]. | pathogenic properties of batai virus, leiv23 astrakhañ strain, isolated from aedes vexans mosquitoes in astrakhañ region were studied comparatively. the degree of susceptibility to the virus of green monkeys and rodents (white mice, syrian hamsters), and the pattern of lesions produced by the virus in organs of these animals were established. the virus was shown to have a comparatively wide host range affecting phylogenetically far distant animals. monkeys were found to have virus-carrier state ... | 1983 | 6230800 |
| genome subunit reassortment among bunyaviruses analysed by dot hybridization using molecularly cloned complementary dna probes. | a simple and rapid procedure for determining the genotypes of viruses has been applied to analysis of genome subunit reassortment in heterologous crosses of batai virus, bunyamwera virus, and maguari virus, three members of the bunyamwera serogroup of bunyaviruses. the procedure for determining genotype made use of specific molecular probes to identify the parental origin of the l and m rna subunits. complementary dna copies of the three rna segments of bunyamwera virus were prepared by reverse ... | 1984 | 6547258 |
| genetic interactions among viruses of the bunyamwera complex. | seventy-seven temperature-sensitive (ts) mutants belonging to three antigenically distinct and geographically isolated members of the bunyamwera complex--batai virus, bunyamwera virus, and maguari virus--have been isolated after 5-fluorouracil treatment. high-frequency recombination was observed, and the mutants of each virus were classified into two groups, which were shown to be equivalent by heterologous recombination experiments. in most combinations heterologous recombination was less effic ... | 1981 | 7218427 |
| isolation of batai virus from sentinel domestic pig from kolar district in karnataka state, india. | batai virus was isolated from the blood sample of one sentinel piglet out of 34 used to monitor the activity of the japanese encephalitis (je) virus at madikere village in kolar district, karnataka state, india. this is the first report of the isolation of batai virus from a mammal. | 1994 | 7879716 |
| a serologic survey for some bacterial and viral zoonoses in game animals in the czech republic. | between 1986 and 1991, sera were collected from 33 roe deer (capreolus capreolus), 24 red deer (cervus elaphus), four fallow deer (dama dama), two mouflon (ovis musimon), 34 wild boars (sus scrofa), and 48 hares (lepus europaeus) shot in two areas of the czech republic. collectively, the sera contained antibodies to coxiella burnetii (prevalence of 12%), francisella tularensis (4%), brucella spp. (2%), central european tick-borne encephalitis virus (8%), tahyna (california serogroup) virus (36%) ... | 1993 | 8258864 |
| isolation of batai virus (bunyaviridae:bunyavirus) from the blood of suspected malaria patients in sudan. | from august through november 1988, 77,500 patients with fever presented to the municipal hospital and to eight government health centers in kassala, a town of approximately 400,000 individuals in eastern sudan. a diagnosis of malaria, based primarily on clinical presentation, was made in 14,395 individuals during this four-month period; fevers of unknown origin were diagnosed in 29 patients. a bunyavirus that was antigenically similar or identical to batai virus by complement fixation and plaque ... | 1993 | 8517485 |
| [the circulation of the california encephalitis complex and batai viruses in the lake baikal region (serological research data)]. | the serological materials of the indigenous population and cattle suggest that there are viral foci of a complex of california encephalitis with the circulation of viruses of inkoo, tahyna [correction of tyagin], and the white hare. the results of examining the residents of irkutsk also suggest that there are urban viral foci of a complex of california encephalitis. the epidemiological potential of the natural foci of batai virus is insignificant in the baikal region. | 1995 | 8587522 |
| [a circulation study of california serogroup and batai viruses (fam. bunyaviridae, genus bunyavirus) on the territory of saratov province]. | examining 337 sera from saratov healthy residents in the neutralization test with tyaginya and inco viruses has revealed 56 positive results (16.6%), of which 19 (5.6%) reacted only with tyaginya virus, 13 (3.9%) did only with inco virus, and 24 (7.1%) simultaneously with these two viruses. batai virus antibodies were not detected in the population. among 80 bovine serum samples collected in the saratov district of the region, type-specific antibodies to tyaginya virus were found in 10 (12.5%) a ... | 1997 | 9182198 |
| [molecular biological identification of batai virus isolated in china]. | to study the molecular characteristics of yn92-4 strain isolated from mosquitoes in yunnan province and define its classification. | 2005 | 16415989 |
| [detection of sindbis virus-specific nucleic acid with sybr green i real time pcr assay]. | to develop a rapid, specific and sensitive method for detecting sindbis virus (sinv) with sybr green i real time pcr. | 2005 | 16415993 |
| batai and ngari viruses: m segment reassortment and association with severe febrile disease outbreaks in east africa. | ngari virus is an orthobunyavirus recently recognized as a reassortant between bunyamwera virus and an as yet unidentified m segment donor. analysis of m segment sequences of batai and ilesha viruses revealed 95% deduced amino acid identity between batai virus and ngari virus. these findings suggest batai virus as the donor of ngari virus m segment sequence. analysis of batai virus-related african isolates identified ugmp-6830, isolated from mosquitoes in uganda, as an isolate of batai virus. kv ... | 2006 | 16699043 |
| natural m-segment reassortment in potosi and main drain viruses: implications for the evolution of orthobunyaviruses. | recently, we identified batai virus as the m-segment reassortment partner of ngari virus. extension of genetic analyses to other orthobunyaviruses related to the bunyamwera serogroup indicates additional natural genome reassortments. whereas the relative phylogenetic positions of all three genome segment sequences were similar for northway and kairi viruses, the relative positions of potosi and main drain virus m-segment sequences diverged from those of their s- and l-segments. our findings indi ... | 2007 | 17891328 |
| [sequencing and analysis of the full coding sequence of batai virus isolated in china]. | by rt-pcr and tail-pcr, the full coding region of batai virus isolated in china (yn92-4 strain)was sequenced for the first time. according to the results, the genome of the virus contained three segments s, m and l of 947, 4,371 and 6,860 nucleotides, respectively. the s segment coded a nucleoprotein of 234 amino acids and a nonstructural protein of 102 amino acids, the m and l segments coded a precursor protein of 1 ,435 amino acids and rna polymerase of 2,239 amino acids, respectively. compare ... | 2009 | 19678560 |
| [molecular-genetic analysis of the batai virus strains isolated from mosquitoes in volgograd region of the russian federation, west ukraine, and czech republic]. | partial nucleotide sequence of the m-segment from five batai virus strains was determined. these strains were isolated in volgograd region, west ukraine, and czech republic. our data based on the partial sequence of the m-segment of batai virus strains demonstrated that the strains isolated in russian federation, ukraine, and czech republic grouped together into an european genetic group that was distinct from asian and african strains of batai virus. | 2010 | 20364478 |
| arboviral survey of mosquitoes in two northern italian regions in 2007 and 2008. | recently, italy-particularly the emilia-romagna region-was the location of consecutive outbreaks of human diseases caused by the arboviruses chikungunya virus and west nile virus. the two outbreaks, spread by different species of mosquitoes, were not related, but pointed out the lack of an arboviral surveillance program in this region. beginning in 2007 entomological surveillance was initiated in the emilia-romagna region, and in 2008 the program was improved and extended at lombardia region. us ... | 2010 | 20370434 |
| analysis of arbovirus isolates from australia identifies novel bunyaviruses including a mapputta group virus from western australia that links gan gan and maprik viruses. | the mapputta group comprises antigenically related viruses indigenous to australia and papua new guinea that are included in the family bunyaviridae but not currently assigned to a specific genus. we determined and analyzed the genome sequences of five australian viruses isolated from mosquitoes collected during routine arbovirus surveillance in western australia (k10441, sw27571, k13190, and k42904) and new south wales (12005). based on matching sequences of all three genome segments to prototy ... | 2016 | 27764175 |
| mosquitoes (diptera: culicidae) and their relevance as disease vectors in the city of vienna, austria. | mosquitoes (diptera: culicidae) are important vectors for a wide range of pathogenic organisms. as large parts of the human population in developed countries live in cities, the occurrence of vector-borne diseases in urban areas is of particular interest for epidemiologists and public health authorities. in this study, we investigated the mosquito occurrence in the city of vienna, austria, in order to estimate the risk of transmission of mosquito-borne diseases. mosquitoes were captured using di ... | 2014 | 25468380 |
| complete genome sequencing of four geographically diverse strains of batai virus. | batai virus (batv) is a widely distributed but poorly studied member of the orthobunyavirus genus in the family bunyaviridae and is of particular interest as a known participant in natural reassortment events. both research and surveillance efforts on this and other related viruses have been hampered by the lack of available full-length sequence data covering all three genomic segments. here, we report the complete genome sequence of four batv strains (mm2222, chittoor/ig-20217, ugmp-6830, and m ... | 0 | 23166251 |
| surveillance of batai virus in bovines from germany. | to estimate the veterinary importance of batai virus (batv), we investigated the presence of batv-specific antibodies and batv rna in 548 bovines from southwest germany, and we demonstrated that 3 cattle serum samples contained batv-neutralizing antibodies, resulting in a seroprevalence of 0.55%. thus, our results confirm local transmission and indicate cattle as potential hosts of batv in southwest germany. | 2015 | 25878253 |
| complete genome sequencing of mosquito and human isolates of ngari virus. | ngari virus (nriv) is a recently described, naturally occurring reassortant between two other orthobunyaviruses, bunyamwera virus (bunv) and batai virus (batv). intriguingly, this reassortment was associated with the acquisition of heightened virulence, although the molecular basis for this is not understood. here we report the first complete genome sequences of ngari virus. we include five isolates from various geographical locations, as well as samples isolated from both mosquitos and human ca ... | 0 | 23166252 |
| serological evidence of batai virus infections, bovines, northern italy, 2011. | batai virus (batv) was identified in mosquitoes in the caltignaga region of novarra, northern italy in 2009. here, we report the identification of antibodies to batv in serum samples that were taken from healthy bovines in that region in 2011. batv has been associated with a mild febrile human illness and identified as the likely parental segment donor in a reassortment event that resulted in the generation of the virulent progeny, ngari virus. the possible veterinary disease associations of bat ... | 2014 | 25198523 |
| isolation and complete nucleotide sequence of a batai virus strain in inner mongolia, china. | batai virus (batv) is a member of the orthobunyavirus genus of the family bunyaviridae, and a vector-borne pathogen. genomic variations of batv exist in different regions of the world, due to genetic reassortment. whole-genome sequencing of any isolate is necessary for a phylogenetic analysis. in 1998, a batv strain was isolated from an anopheles philippines mosquito in yunnan province, china. this strain has not been found to infect any other host. we investigated batv infection in cattle in in ... | 2014 | 25100223 |
| full-length genome analysis of čalovo strains of batai orthobunyavirus (bunyamwera serogroup): implications to taxonomy. | batai virus (batv) is a poorly studied arthropod-borne virus belonging to the genus orthobunyavirus (bunyamwera serogroup) within the family bunyaviridae. it has been associated with human influenza-like febrile illness in several asian, african, and european countries. čalovo virus (cvov), isolated in 1960 in slovakia, has been classified as batv based on high antigenic similarity, and since then both cvov and batv were used as synonyms. in order to fully clarify the phylogenetic relationships ... | 2014 | 25017655 |
| [complete genome analysis of the batai virus (batv) and the new anadyr virus (anadv) of the bunyamwera group (bunyaviridae, orthobunyavirus) isolated in russia]. | almost complete nucleotide sequences for the s, m, and l segments were obtained for three strains of the batai virus (bunyamwera serogroup, genus orthobunyavirus, bunyaviridae family). based on the results of the phylogenetic analysis conducted forthe three genomic segments leiv ast507 and leiv-ast528 strains were grouped with other european batv isolates and were found to be almost identical to the strain 42 isolated from volgograd region, russia, 2003. surprisingly, leiv-13395 strain isolated ... | 2014 | 25929031 |
| molecular characterization of the african orthobunyavirus ilesha virus. | ilesha virus is an arthropod-borne virus belonging to the genus orthobunyavirus of the bunyaviridae family. ilesha virus has been isolated from humans in several african countries, mostly in relation with febrile illness and erythema, though there are reported cases of fatal meningoencephalitis and hemorrhagic fever. in the present study, we report the complete genomic sequence of all three ilesha virus segments (s, m, l) and characterize the open reading frames. the nucleoprotein encoded by seg ... | 2013 | 23988729 |
| isolation and full genomic characterization of batai virus from mosquitoes, italy 2009. | in 2009, 2589 mosquitoes were collected in northwest italy and screened for orthobunyavirus rna by rt-pcr. one pool of anopheles maculipennis complex mosquitoes was found to be positive and a virus was isolated from that pool. the isolate was identified as batai virus (batv) by sequencing. previously, batv was detected in italy, but limited data and no prior isolates existed. full-length sequences of the s, m and l segments were determined for the newly isolated italian strain. for comparison, p ... | 2013 | 23515020 |
| association of batai virus infection and encephalitis in harbor seals, germany, 2016. | we isolated batai virus from the brain of a euthanized, 26-year-old, captive harbor seal with meningoencephalomyelitis in germany. we provide evidence that this orthobunyavirus can naturally infect the central nervous system of a mammal. the full-genome sequence showed differences from a previously reported virus isolate from a mosquito in germany. | 2018 | 30124416 |
| development of reverse transcription loop-mediated isothermal amplification for rapid detection of batai virus in cattle and mosquitoes. | batai virus (batv) is an arthropod-borne single-stranded rna virus belonging to the genus orthobunyavirus of the family bunyaviridae that is primarily transmitted by mosquitoes. methods for detecting batv are currently limited to serological surveillance, virus isolation, and conventional reverse transcription-polymerase chain reaction (rt-pcr) assay. in this study, we sought to develop a batv detection assay that needs no specialized equipment and is highly specific, sensitive, and simple. we f ... | 2016 | 27027481 |
| rapid detection of european orthobunyaviruses by reverse transcription loop-mediated isothermal amplification assays. | the development of reverse transcriptase loop-mediated isothermal amplification (rt-lamp) assays are described herein for the detection of two orthobunyaviruses (bunyaviridae), which represent the two main serogroups found in mosquitoes in central europe. the rt-lamp assays were optimized for the detection of ťahyňa virus (a california encephalitis group virus found in aedes sp or ochlerotatus sp mosquitoes) and batai virus (also called čalovo virus, a bunyamwera group virus found in anopheles m ... | 2016 | 27491341 |
| characterization of batai virus isolated from a domestic muscovy duck (cairina moschate). | batai virus (batv) belongs to the genus orthobunyavirus of the family bunyaviridae. it has been isolated from mosquitos, pigs, cattle, and humans throughout africa, asia, and europe, and causes clinical signs in domestic animals and humans. here, we report the isolation of batv from a domestic duck flock. genome sequence analysis revealed clustering of this isolate in the africa-asia lineage. the virus replicated in mosquitos and vertebrate host cells, showing different phenotypic characteristic ... | 2017 | 27734222 |
| molecular characterization of chittoor (batai) virus isolates from india. | chittoor virus (chitv) belongs to genus orthobunyavirus, family bunyaviridae. it has been isolated from various species of mosquitoes and pig from different parts of india. five isolates of chitv were characterized at the molecular level and compared with other batai viruses (batv) to find out any kind of reassortment in their genome. | 2012 | 23287126 |
| development of a flow-trough microarray based reverse transcriptase multiplex ligation-dependent probe amplification assay for the detection of european bunyaviruses. | it is suspected that apart from tick-borne encephalitis virus several additional european arboviruses such as the sandfly borne toscana virus, sandfly fever sicilian virus and sandfly fever naples virus, mosquito-borne tahyna virus, inkoo virus, batai virus and tick-borne uukuniemi virus cause aseptic meningo-encephalitis or febrile disease in europe. currently, the microarray technology is developing rapidly and there are many efforts to apply it to infectious diseases diagnostics. in order to ... | 2011 | 21390485 |
| isolation and phylogenetic analysis of batai virus, germany. | a molecular survey including 16,057 mosquitoes captured in southwest germany during the summer of 2009 showed the presence of batai virus (batv) in anopheles maculipennis sensu lato. until this survey, there was no evidence for circulation of batv in germany. analysis of partial s, m, and l segments showed that the sequences from all three segments were most closely related to batv, indicating that the virus has not undergone reassortment. phylogenetic analysis revealed a close relationship of t ... | 2011 | 21292892 |
| genetic characterization of batai virus indicates a genomic reassortment between orthobunyaviruses in nature. | two viruses were isolated from bovine blood in the southernmost part of japan in 1994 and 2001, respectively. genetic analyses showed that the viruses were batai virus of the genus orthobunyavirus of the family bunyaviridae. the sequencing of three genomic rna segments of the japanese and malaysian batai virus strains revealed that the m rna segment of batai virus had high sequence identity with that of ngari virus. our results indicate that ngari virus is a genetic reassortant with s and l rna ... | 2006 | 16820982 |
| [detection of banna virus-specific nucleic acid with taqman rt-pcr assay]. | to develop a rapid and more sensitive taqman rt-pcr assay specific for banna virus. | 2006 | 16642219 |
| mosquito-borne viruses in western europe: a review. | several mosquito-borne arboviruses belonging to the genera alphavirus, flavivirus, and bunyavirus have been reported to occur in mosquitoes and to infect humans and other vertebrates in western europe. these zoonotic viruses circulate in nature either in an aedes-mammal, anopheles-mammal, or culex-bird transmission cycle. infected humans normally do not contribute to the virus circulation. west nile virus (flavivirus) caused an outbreak of fever, malaise, pain in eyes and muscles, and headache a ... | 1999 | 10436876 |
| [mosquito-borne arboviruses in the baikal region]. | a total of 20 virus strains were isolated from arthropods and rodents in the baikal region in 1992. thirteen of these were california serogroup viruses, 4 batai virus strains (bunyaviridae, bunyavirus), and 3 gheta virus strains (togaviridae, alphavirus, semliki complex). the rates of mosquito infection with california, batai, and gheta viruses were 1:6500, 1:24000, and 1:24000, respectively. the results of the neutralization test indicate the similarity of the isolated california complex strain ... | 1995 | 7483568 |
| [isolation of a tahyna-like virus (bunyaviridae, bunyavirus, california encephalitis complex) on northern sakhalin island]. | the strain leiv-11483 sak of tahyna virus or a virus closely related to it antigenically was isolated from aedes spp. mosquitoes (predominantly a. communis) collected august 25, 1985, in the light coniferous subzone of the mid-taiga landscape zone in the north of sakhalin island (54 degrees n, 142 degrees e). altogether, 17.8 thousand mosquitoes were examined which were collected in june-august, 1985, in the light and dark coniferous subzones of mid-taiga. in the human population, virus-neutrali ... | 1987 | 2893491 |
| prehibernation diet and reproductive condition of female anopheles messeae in sweden. | 1. blood and sugar feeding in the mosquito anopheles messeae falleroni were investigated near uppsala, sweden, from 1981 to 1985, with emphasis on prehibernation diet. 2. fructose, indicating plant feeding, was present in females of all ovarian stages, from april to october, and contributed to fat body development in non-gonoactive females before hibernation. 3. an.messeae males and females (inseminated and uninseminated) were observed feeding on floral nectaries of the plants achillea millefoli ... | 1991 | 1768915 |
| mosquito-borne viruses in finland. | inkoo virus, the finnish representative of the california group, was isolated from a pool of aedes communis/punctor. it is distinguishable from tahyna, california encephalitis, trivittatus and melao viruses, but seems to be antigenically related to the jamestown canyon virus. the prevalence of inkoo antibodies increases towards the north in both human beings (16% to 69%) and cows (37% to 88%). inkoo antibodies are common also in other mammals of large size (reindeer, moose, foxes), less frequent ... | 1975 | 1207184 |
| serological and molecular investigation of batai virus infections in ruminants from the state of saxony-anhalt, germany, 2018. | arthropod-borne batai virus (batv) is an orthobunyavirus widely distributed throughout european livestock and has, in the past, been linked to febrile diseases in humans. in germany, batv was found in mosquitoes and in one captive harbor seal, and antibodies were recently detected in various ruminant species. we have, therefore, conducted a follow-up study in ruminants from saxony-anhalt, the most affected region in eastern germany. a total of 325 blood samples from apparently healthy sheep, goa ... | 2021 | 33652882 |