Publications

TitleAbstractYear(sorted ascending)
Filter
PMID
Filter
disease and the dynamics of extinction.invading infectious diseases can, in theory, lead to the extinction of host populations, particularly if reservoir species are present or if disease transmission is frequency-dependent. the number of historic or prehistoric extinctions that can unequivocally be attributed to infectious disease is relatively small, but gathering firm evidence in retrospect is extremely difficult. amphibian chytridiomycosis and tasmanian devil facial tumour disease (dftd) are two very different infectious diseases ...022966138
the emergence and spread of finch trichomonosis in the british isles.finch trichomonosis, caused by the protozoal parasite trichomonas gallinae, was first recognized as an emerging infectious disease of british passerines in 2005. the first year of seasonal epidemic mortality occurred in 2006 with significant declines of greenfinch carduelis chloris and chaffinch fringilla coelebs populations. here, we demonstrate that large-scale mortality, principally of greenfinch, continued in subsequent years, 2007-2009, with a shifting geographical distribution across the b ...022966140
biodiversity loss decreases parasite diversity: theory and patterns.past models have suggested host-parasite coextinction could lead to linear, or concave down relationships between free-living species richness and parasite richness. i explored several models for the relationship between parasite richness and biodiversity loss. life cycle complexity, low generality of parasites and sensitivity of hosts reduced the robustness of parasite species to the loss of free-living species diversity. food-web complexity and the ordering of extinctions altered these relatio ...022966137
national and international policies to mitigate disease threats.to devise and implement effective health policy, we must define the problem, choose the tools, craft the policy, build consensus, set goals and deadlines, raise funds and take action. success or failure depends on the perception of risk, the strength of the underlying science, the efficacy of the technology, ownership and intellectual property, the conflict between individual and public health, the choice of weaker (guidelines) and stronger (law) policy instruments, the level of public interest, ...022966144
the tim and tam families of phosphatidylserine receptors mediate dengue virus entry.dengue viruses (dvs) are responsible for the most medically relevant arboviral diseases. however, the molecular interactions mediating dv entry are poorly understood. we determined that tim and tam proteins, two receptor families that mediate the phosphatidylserine (ptdser)-dependent phagocytic removal of apoptotic cells, serve as dv entry factors. cells poorly susceptible to dv are robustly infected after ectopic expression of tim or tam receptors. conversely, dv infection of susceptible cells ...023084921
oncolytic viruses & their specific targeting to tumour cells.cancer is one of the major causes of death worldwide. in spite of achieving significant successes in medical sciences in the past few decades, the number of deaths due to cancer remains unchecked. the conventional chemotherapy and radiotherapy have limited therapeutic index and a plethora of treatment related side effects. this situation has provided an impetus for search of novel therapeutic strategies that can selectively destroy the tumour cells, leaving the normal cells unharmed. viral oncot ...023168697
satellite microwave remote sensing for environmental modeling of mosquito population dynamics.environmental variability has important influences on mosquito life cycles and understanding the spatial and temporal patterns of mosquito populations is critical for mosquito control and vector-borne disease prevention. meteorological data used for model-based predictions of mosquito abundance and life cycle dynamics are typically acquired from ground-based weather stations; however, data availability and completeness are often limited by sparse networks and resource availability. in contrast, ...023049143
infravec: research capacity for the implementation of genetic control of mosquitoes.mosquitoes represent a major and global cause of human suffering due to the diseases they transmit. these include parasitic diseases, i.e. malaria and filariasis, and viral infections such as dengue, encephalitis, and yellow fever. the threat of mosquito-borne diseases is not limited to tropical and subtropical regions of the world. trade and climate changes have opened new niches to tropical vectors in temperate areas of the world, thus putting previously unaffected regions at risk of disease t ...024428829
complement fixation with the neurotropic viruses.antigens capable of fixing complement specifically with the appropriate antibodies have been prepared from brain tissue of hamsters and mice infected with the viruses of st. louis, japanese, western, and eastern encephalitis, and with the west nile virus. the antigens were freed of the material which reacts with normal serum by means of centrifugation at relatively high speed. in addition, the infectivity of the preparation was destroyed by irradiation with ultraviolet light. cross reactions wer ...194319871270
immunological relationships among central nervous system viruses.from observations carried out with the viruses of russian spring-summer encephalitis, louping ill, w.e.e., and the japanese b, st. louis, and west nile types of encephalitis, the following facts and inferences have been derived. 1. russian encephalitis and louping ill viruses showed a close relationship by complement fixation, neutralization, and intraperitoneal cross-resistance tests. intracerebral cross-resistance tests, on the other hand, failed to reveal any connection between them. neither ...194419871375
interference between viruses in tissue culture.the influence of one virus on the growth of another in tissue culture was investigated. the 17dd high strain of yellow fever virus was found capable of completely suppressing the growth of both the asibi strain of the same virus and of the heterologous west nile virus, even when these were added to the cultures in large amounts. the 17dd high strain of yellow fever virus and the west nile virus produced either partial or complete suppression of growth of the venezuelan equine encephalomyelitis v ...194619871525
effect of in vitro cultivation on the pathogenicity of west nile virus.the west nile virus was cultivated in suspended cell culture media employing several different tissue components, and it has been observed to survive in culture for at least 32 days. continued propagation of the virus in vitro resulted in a change in its pathogenicity. the change lay in a marked reduction or a complete loss of the ability of the virus to produce fatal infections in mice and in hamsters on peripheral inoculation, although there was no obvious simultaneous alteration in the lethal ...194619871562
effect of in vitro cultivation on the pathogenicity of west nile virus. 194620994382
effect of in vitro cultivation on the pathogenicity of west nile virus. 194621064733
[not available]. 194918153521
experimental transmission of the west nile virus by the mosquito. 195014794284
[sensitivity of strains of gray mice to the west nile virus]. 195114850016
isolation from human sera in egypt of a virus apparently identical to west nile virus. 195114891830
morphological observations by electron microscopy of west nile virus after propagation in the swiss mouse. 195114911975
[virulence of the west nile virus in relation to the age of the susceptible animals]. 195114917359
effect of west nile virus in the swiss albino mouse and the cave bat. 195214946102
response of the baby chich to west nile virus. 195214949000
response of young dogs to west nile virus. 195313037864
quantitative studies of the virus-host relationship in chimpanzees after inapparent infection with coxsackie viruses. ii. the development of complement-fixing antibodies.eight chimpanzees were fed and/or inoculated with a single coxsackie (c) virus or combinations of different ones. the responses in terms of complement-fixing (c-f) antibodies to 6 to 10 such viruses were measured throughout periods of 1 to 2 years. although the animals usually responded with rises in homologous antibodies after the feeding or the inoculation of viruses of special immunological types, a variable number of heterologous c-f antibodies were observed to increase significantly at the ...195313052808
isolation of west nile virus from culex mosquitoes. 195313084817
[the isolation of the west nile virus in israel]. 195313095861
isolation of west nile virus in israel. 195313109233
isolation of west nile virus from hooded crow and rock pigeon in the nile delta. 195313134268
observation on the biology of west nile virus, with special reference to its behaviour in the mosquito aëdes aegypti. 195413149118
the hemagglutinin of west nile virus: recovery, properties, and antigenic relationships. 195413212057
induced virus infections in man by the egypt isolates of west nile virus. 195413114588
report of clinical case of west nile virus infection probably acquired in the laboratory. 195413114589
west nile fever; the clinical features of the disease and the isolation of west nile virus from the blood of nine human cases. 195413124327
indigenous wild birds of the nile delta as potential west nile virus circulating reservoirs. 195513259011
studies on the dynamics of experimental transmission of west nile virus by culex molestus. 195513268808
the occurrence of west nile virus in south africa. 195513281658
the effect of west nile virus on experimental malaria infection (plasmodium berghed) in mice. 195513318532
clinical observations on patients with west nile fever during outbreaks of the disease in 1950-1953. 195513318516
a study of the ecology of west nile virus in egypt. 195613354882
neuropathology of experimental west nile virus infection in monkeys. 195613367865
west nile virus infection in arthropods. 195613292654
the natural history of west nile fever. i. clinical observations during an epidemic in israel. 195613372519
attempts to immunize hamsters to west nile virus; passive, passive-active and active methods. 195713431973
[biochemical study of experimental west nile virus infections; behavior of succinodehydrogenase, asparticketoglutaric transaminase, adenylpyrophosphatase, rhodanese and hexokinase activity in the brain and liver]. 195713436601
the natural history of west nile fever. ii. virological findings and the development of homologous and heterologous antibodies in west nile infection in man. 195713478585
clinical application of the hemagglutination-inhibition test for west nile virus antibodies. 195813525777
learning deficit in mature rats recovered from early post-natal infection with west nile virus. 195813554605
studies on immunologic overlap among certain arthropod-borne viruses. iii. a laboratory analysis of three strains of west nile virus which have been studied in human cancer patients. 195813571225
[sodium & potassium in myocardial & skeletal muscular tissue in experimental infection of the mouse by west nile virus]. 195813584587
[experimental pathogenic power of west nile virus for the gerbille & for the white mouse]. 195813609112
[action of ribonuclease and deoxyribonuclease on west nile virus]. 195813608988
[clinical and laboratory observations in an outbreak of west nile fever in israel in 1957]. 195813562703
airborne west nile virus infection. 195914427299
isolation of west nile virus from a naturally infected human being and from a bird, sylvietta rufescens (vieillot). 195914410616
[electron microscopy of encephalitis due to west nile virus. virological and histopathological study]. 195914414663
[cytophotometric study of the desoxyribonucleic acid content of the nuclie of kb cells in the course of their infection by the west nile virus]. 195914414665
duration of protective action of interferon against infection with west nile virus. 195913853042
[contribution to the study of virus-host cell relations. morphologic, biologic and histopathologic study of the west-nile virus]. 196014414666
[latent experimental infection of a cell culture by west nile virus]. 196014414668
[on the preservation and transmission of the west nile virus by some arthropods]. 196013780928
antigenic analysis of certain group b arthropodborne viruses by antibody absorption.a method for carrying out antibody absorption studies for antigenic analysis of group b arthropod-borne (arbor) viruses is described and examples of homologous and heterologous absorption curves are presented. evidence that antigenic structure can be a stable property was obtained with three strains of west nile virus isolated from different hosts in different countries over a period of years. comparative studies with viruses of the japanese b-st. louis-west nile subgroup indicate that each viru ...196013810498
potentiality of ornithodoros moubata murray (acarina, argasidae) as a reservoirvector of west nile virus. 196013844469
biological characteristics of some of the arbor viruses in vivo and in vitro. ii. multiplication and cytopathogenicity of west nile virus in kidney tissue cultures from various animals compared with the susceptibility of the animals in vivo. 196113729196
the virulence of west nile virus and tp 21 virus and their application to a group b arbor virus vaccine. 196113737981
production of interferon by brains of genetically resistant and susceptible mice infected with west nile virus. 196113779613
the isolation of west nile virus from the bird-biting mosquito mansonia metallica in uganda. 196114008197
joint action of west nile virus and chemical carcinogens in production of papillomas in mice. 196213984819
encephalitis due to west nile fever virus. 196214489055
first isolation of west nile virus in central africa. 196314073525
effects of acetone, ultraviolet irradiation and formalin on west nile virus infectivity and immunofluoroescent antigenicity. 196314101189
natural and experimental infection of egyptian equines with west nile virus. 196314101930
failure to obtain experimental transovarian transmission of west nile virus by aedes aegypti. 196314101931
[dynamics of antibodies in white rats during the preparation of reference immune sera with west nile virus of the egypt 101 strain]. 196414184554
isolation of west nile virus from the african bird argasid, argas reflexus hermanni, in egypt. 196414188830
virus biographies. i. growth of west nile and guaroa viruses in tissue culture.southam, chester m. (sloan-kettering institute for cancer research, new york, n.y.), frederick h. shipkey, virginia i. babcock roller bailey, and robert a. erlandson. virus biographies. i. growth of west nile and guaroa viruses in tissue culture. j. bacteriol. 88:187-199. 1964.-monolayer tissue cultures of hep 2 cells (human epidermoid carcinoma) were inoculated with guaroa or west nile viruses. at daily intervals for 4 days thereafter, these cultures were studied by (i) light microscopy of livi ...196414197886
the isolation of west nile virus from man and of usutu virus from the bird-biting mosquito mansonia aurites (theobald) in the entebbe area of uganda. 196414212897
[isolation in france of the west nile virus from patients and from the vector culex modestus ficalbi]. 196414260659
isolation of west nile virus from culex fatigans mosquitoes from western india. 196514344959
west nile fever. a review of its clinical, epidemiologic and ecologic features. 196514347029
the blocking effect of west nile virus on production of sarcoma by rous virus in chickens. 19654285070
"cyclopin". 19654285588
west nile virus infection in mice following exposure to a viral aerosol. 19655317964
a comparison of the amounts of mouse interferon obtained from different sources. 19655832831
the neutralization of arboviruses. ii. neutralization in heterologous virus-serum mixtures with four group b arboviruses. 19655833311
inhibition of arboviruses by a constituent of a staphylococcus. 19655836029
meningo-encephalitis due to west nile fever. reports of 2 cases. 19655862853
the susceptibility of arvicanthis abyssinicus (rüppell) to infection with various arboviruses. 19665922614
dual infections of aedes aegypti l. with plasmodium gallinaceum brumpt and west nile virus. 19665944664
an assessment of culex pipiens quinquefasciatus say as a vector of viruses in the witwatersrand region of the transvaal. i. west nile virus. 19665953935
an assessment of two methods for artificially infecting mosquitoes with arboviruses. 19665954412
antibody to sindbis virus in a west nile virus endemic area and the use of different tests for the detection of antibody to these two viruses. 19665965993
growth of aedes aegypti embryonic cells and tissues in vitro. 19665968635
[on 3 cases of encephalitis caused by arboirus of the b group (west nile)]. 19665998508
[studies on endemic nephrocirrhosis in the balkan peninsula]. 19666011650
prevalence of antibodies to arboviruses in various animals in israel.a serological survey of the prevalence of arbovirus antibodies in various mammals and birds was made in israel during the years 1959-60, employing the haemagglutination-inhibition technique and using group-a and group-b antigens. high proportions of the animals of several species were found to be positive to group-b arboviruses. most of these animals showed higher titres against the west nile virus than against that of turkey meningoencephalitis, but in some cases there were higher titres agains ...19665296538
immunofluorescence study of the mechanism of resistance to superinfection in mice carrying the lymphocytic choriomeningitis virus. 19665331384
further observations on geographic variation in the antigenic character of west nile and japanese b viruses. 19664286367
fate of intravenously administered interferon and the distribution of interferon during virus infections in mice. 19664287567
[isolation of west nile virus in a camarge horse with encephalomyelitis]. 19664956435
pathogenesis of west nile virus encepahlitis in mice and rats. ii. virus multiplication, evolution of immunofluorescence, and development of histological lesions in the brain. 19674866286
Displaying items 801 - 900 of 12507