Records |
Author |
Dauphin, G.; Zientara, S.; Zeller, H.; Murgue, B. |
Title |
West Nile: worldwide current situation in animals and humans |
Type |
Journal Article |
Year |
2004 |
Publication |
Comparative Immunology, Microbiology and Infectious Diseases |
Abbreviated Journal |
Comp Immunol Microbiol Infect Dis |
Volume |
27 |
Issue |
5 |
Pages |
343-355 |
Keywords |
Americas/epidemiology; Animals; Birds/virology; Culex/*virology; *Disease Outbreaks; Disease Reservoirs; Europe/epidemiology; Horses/virology; Humans; Insect Vectors/*virology; Middle East/epidemiology; West Nile Fever/*epidemiology/*veterinary/virology; West Nile virus/*growth & development |
Abstract |
West Nile (WN) virus is a mosquito-borne flavivirus that is native to Africa, Europe, and Western Asia. It mainly circulates among birds, but can infect many species of mammals, as well as amphibians and reptiles. Epidemics can occur in rural as well as urban areas. Transmission of WN virus, sometimes involving significant mortality in humans and horses, has been documented at erratic intervals in many countries, but never in the New World until it appeared in New York City in 1999. During the next four summers it spread with incredible speed to large portions of 46 US states, and to Canada, Mexico, Central America and the Caribbean. In many respects, WN virus is an outstanding example of a zoonotic pathogen that has leaped geographical barriers and can cause severe disease in human and equine. In Europe, in the past two decades there have been a number of significant outbreaks in several countries. However, very little is known of the ecology and natural history of WN virus transmission in Europe and most WN outbreaks in humans and animals remain unpredictable and difficult to control. |
Address |
AFSSA Alfort, UMR1161 (INRA-AFSSA-ENVA), 22 rue Pierre Curie, BP 63, 94703 Maisons-Alfort Cedex, France |
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0147-9571 |
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PMID:15225984 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2635 |
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Author |
Komar, N. |
Title |
West Nile virus: epidemiology and ecology in North America |
Type |
Journal Article |
Year |
2003 |
Publication |
Advances in Virus Research |
Abbreviated Journal |
Adv Virus Res |
Volume |
61 |
Issue |
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Pages |
185-234 |
Keywords |
Animals; Bird Diseases/virology; Birds/virology; Culex/virology; Disease Reservoirs; Ecosystem; Epidemiology, Molecular; Horse Diseases/virology; Horses/virology; Humans; Insect Vectors; North America/epidemiology; Risk Factors; West Nile Fever/*epidemiology/transmission/veterinary; West Nile virus/genetics |
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Address |
Centers for Disease Control and Prevention, Division of Vector-Borne Infectious Diseases, Fort Collins, Colorado 80522, USA |
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English |
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ISSN |
0065-3527 |
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Notes |
PMID:14714433 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2638 |
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Author |
Valero, N. |
Title |
West Nile virus: a new challenge? |
Type |
Journal Article |
Year |
2003 |
Publication |
Investigacion Clinica |
Abbreviated Journal |
Invest Clin |
Volume |
44 |
Issue |
3 |
Pages |
175-177 |
Keywords |
Animal Migration; Animals; Bird Diseases/virology; Birds; Caribbean Region; Central America; Culex/virology; Horse Diseases/virology; Horses; Humans; Insect Vectors/virology; North America/epidemiology; South America; West Nile Fever/*epidemiology/transmission/veterinary; West Nile virus/*physiology |
Abstract |
West Nile Virus (WNV), a member of the family Flaviviridae, was first isolated in 1937. Since the original isolation of the WNV outbreaks have occurred with increase in frequency of cases in humans and horses, apparent increase in severe human disease and high avian death rates. In 1999, 2000 and 2002 outbreaks of the WNV encephalitis were reported in horses, birds and humans from New York and Canada. Ornithophilic mosquitoes are the principal vectors of the WNV and birds of several species chiefly migrants appear to be the major introductory or amplifying host. The pattern of outbreaks in the old and new world suggests that viremic migratory birds may also contribute to movement of the virus. If so, Central America, Caribbean Islands and countries of South America including Venezuela, are in potential risk for suffering a severe outbreak for WNV, since several species of birds have populations that pass trough New York and cross the western north Atlantic or Caribbean Sea. It is important the knowledge of the ecology of WNV as well of the efficacy of control efforts in order to minimize the public health impact in these countries, where all population is susceptible to this infection. |
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Spanish |
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Virus del Nilo Occidental: Un nuevo reto? |
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ISSN |
0535-5133 |
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Notes |
PMID:14552056 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2640 |
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Author |
Endy, T.P.; Nisalak, A. |
Title |
Japanese encephalitis virus: ecology and epidemiology |
Type |
Journal Article |
Year |
2002 |
Publication |
Current Topics in Microbiology and Immunology |
Abbreviated Journal |
Curr Top Microbiol Immunol |
Volume |
267 |
Issue |
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Pages |
11-48 |
Keywords |
Animals; Birds/virology; Climate; Culicidae/virology; Disease Outbreaks/history; Ecosystem; Encephalitis Virus, Japanese/*pathogenicity; Encephalitis, Japanese/*epidemiology/*etiology/history/transmission; History, 20th Century; Horses/virology; Humans; Insect Vectors; Japan/epidemiology; Risk Factors; Swine/virology; Thailand/epidemiology; Viral Vaccines/pharmacology |
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Address |
Department of Virology, United States Army Medical Component, Armed Forces Research Institute of Medical Sciences (USAMC-AFRIMS), 315/6 Rajvithi Road, Bangkok 10400, Thailand |
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English |
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ISSN |
0070-217X |
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Notes |
PMID:12082986 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2643 |
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Author |
Marfin, A.A.; Petersen, L.R.; Eidson, M.; Miller, J.; Hadler, J.; Farello, C.; Werner, B.; Campbell, G.L.; Layton, M.; Smith, P.; Bresnitz, E.; Cartter, M.; Scaletta, J.; Obiri, G.; Bunning, M.; Craven, R.C.; Roehrig, J.T.; Julian, K.G.; Hinten, S.R.; Gubler, D.J. |
Title |
Widespread West Nile virus activity, eastern United States, 2000 |
Type |
Journal Article |
Year |
2001 |
Publication |
Emerging Infectious Diseases |
Abbreviated Journal |
Emerg Infect Dis |
Volume |
7 |
Issue |
4 |
Pages |
730-735 |
Keywords |
Animals; Bird Diseases/epidemiology/virology; Culicidae/virology; *Disease Outbreaks; Ecology; Horse Diseases/epidemiology/virology; Horses; Humans; Population Surveillance; Songbirds/virology; United States/epidemiology; West Nile Fever/*epidemiology/veterinary/virology; *West Nile virus |
Abstract |
In 1999, the U.S. West Nile (WN) virus epidemic was preceded by widespread reports of avian deaths. In 2000, ArboNET, a cooperative WN virus surveillance system, was implemented to monitor the sentinel epizootic that precedes human infection. This report summarizes 2000 surveillance data, documents widespread virus activity in 2000, and demonstrates the utility of monitoring virus activity in animals to identify human risk for infection. |
Address |
Division of Vector-Borne Infections Diseases, Centers for Disease Control and Prevention, P.O. Box 2087, Fort Collins, CO 80522, USA. aam@cdc.gov |
Corporate Author |
ArboNET Cooperative Surveillance Group |
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English |
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Series Issue |
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Edition |
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ISSN |
1080-6040 |
ISBN |
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Notes |
PMID:11585539 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2646 |
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Author |
Kida, H. |
Title |
[Ecology of influenza viruses in animals and the mechanism of emergence of new pandemic strains] |
Type |
Journal Article |
Year |
1997 |
Publication |
Nippon Rinsho. Japanese Journal of Clinical Medicine |
Abbreviated Journal |
Nippon Rinsho |
Volume |
55 |
Issue |
10 |
Pages |
2521-2526 |
Keywords |
Animals; Bird Diseases/transmission; Birds; Horse Diseases/transmission; Horses; Humans; Influenza, Human/transmission/*veterinary; Swine; Swine Diseases/transmission; Zoonoses |
Abstract |
Ecological studies on influenza viruses revealed that the hemagglutinin genes are introduced into new pandemic strains from viruses circulating in migratory ducks through domestic ducks and pigs in southern China. Experimental infection of pigs with 38 avian influenza virus strains with H1-H13 hemagglutinins showed that at least one strain of each HA subtype replicated in the upper respiratory tract of pigs. Co-infection of pigs with a swine virus and with an avian virus generated reassortant viruses. The results indicate that avian viruses of any subtype can contribute genes in the generation of reassortants. Virological surveillance revealed that influenza viruses in waterfowl reservoir are perpetuated year-by-year in the frozen lake water while ducks are absent. |
Address |
Department of Disease Control, Hokkaido University Graduate School of Veterinary Medicine |
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Japanese |
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ISSN |
0047-1852 |
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Notes |
PMID:9360367 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2654 |
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Author |
Dierenfeld, E.S. |
Title |
Vitamin E in exotics: effects, evaluation and ecology |
Type |
Journal Article |
Year |
1994 |
Publication |
The Journal of Nutrition |
Abbreviated Journal |
J Nutr |
Volume |
124 |
Issue |
12 Suppl |
Pages |
2579s-2581s |
Keywords |
Animal Feed/*analysis; Animals; Animals, Zoo/blood/*metabolism; Antelopes/blood/metabolism; Birds/blood/metabolism; Deer/blood/metabolism; Elephants/blood/metabolism; Equidae/blood/metabolism; Perissodactyla/blood/metabolism; Vitamin E/*administration & dosage/analysis/blood; Vitamin E Deficiency/pathology/physiopathology/veterinary |
Abstract |
The pathophysiology and lesions associated with vitamin E deficiency are similar between domestic and exotic species, and circulating plasma concentrations are also similar between comparable groups. However, many ecological variables must be considered for the most relevant comparisons. Tissue values of vitamin E, apart from plasma, are unknown for most exotics. Dietary vitamin E requirements of exotic species and domestics appear to differ; based on natural foodstuff analyses and clinical observations, between 50 and 200 mg vitamin E/kg DM are necessary to prevent vitamin E deficiency, 5- to 10-fold higher than current livestock recommendations. |
Address |
Department of Nutrition, Wildlife Health Center, Wildlife Conservation Society, Bronx, NY 10460 |
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English |
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ISSN |
0022-3166 |
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PMID:7996243 |
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no |
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Equine Behaviour @ team @ |
Serial |
2661 |
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Author |
Beveridge, W.I. |
Title |
Unravelling the ecology of influenza A virus |
Type |
Journal Article |
Year |
1993 |
Publication |
History and Philosophy of the Life Sciences |
Abbreviated Journal |
Hist Philos Life Sci |
Volume |
15 |
Issue |
1 |
Pages |
23-32 |
Keywords |
Animals; Bird Diseases/epidemiology/*history/microbiology; Birds; Ecology; History, 20th Century; Horse Diseases/epidemiology/*history/microbiology; Horses; Humans; Influenza A virus/*isolation & purification; Influenza, Human/epidemiology/*history/microbiology/*veterinary; Swine; Swine Diseases/epidemiology/*history/microbiology; Zoonoses/history |
Abstract |
For 20 years after the influenza A virus was discovered in the early 1930s, it was believed to be almost exclusively a human virus. But in the 1950s closely related viruses were discovered in diseases of horses, pigs and birds. Subsequently influenza A viruses were found to occur frequently in many species of birds, particularly ducks, usually without causing disease. Researchers showed that human and animal strains can hybridise thus producing new strains. Such hybrids may be the cause of pandemics in man. Most pandemics have started in China or eastern Russia where many people are in intimate association with animals. This situation provides a breeding ground for new strains of influenza A virus. |
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ISSN |
0391-9714 |
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PMID:8310117 |
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no |
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Equine Behaviour @ team @ |
Serial |
2667 |
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Author |
Hardy, J.L. |
Title |
The ecology of western equine encephalomyelitis virus in the Central Valley of California, 1945-1985 |
Type |
Journal Article |
Year |
1987 |
Publication |
The American Journal of Tropical Medicine and Hygiene |
Abbreviated Journal |
Am J Trop Med Hyg |
Volume |
37 |
Issue |
3 Suppl |
Pages |
18s-32s |
Keywords |
Aedes/microbiology; Animals; Birds; California; Culex/microbiology; Encephalitis Virus, Western Equine/*physiology; Encephalomyelitis, Equine/*history/microbiology/transmission/veterinary; History, 20th Century; Horse Diseases/history/transmission; Horses; Humans; Insect Vectors/microbiology; Mammals |
Abstract |
Reeves' concept of the summer transmission cycle of western equine encephalomyelitis virus in 1945 was that the virus was amplified in a silent transmission cycle involving mosquitoes, domestic chickens, and possibly wild birds, from which it could be transmitted tangentially to and cause disease in human and equine populations. Extensive field and laboratory studies done since 1945 in the Central Valley of California have more clearly defined the specific invertebrate and vertebrate hosts involved in the basic virus transmission cycle, but the overall concept remains unchanged. The basic transmission cycle involves Culex tarsalis as the primary vector mosquito species and house finches and house sparrows as the primary amplifying hosts. Secondary amplifying hosts, upon which Cx. tarsalis frequently feeds, include other passerine species, chickens, and possibly pheasants in areas where they are abundant. Another transmission cycle that most likely is initiated from the Cx. tarsalis-wild bird cycle involves Aedes melanimon and the blacktail jackrabbit. Like humans and horses, California ground squirrels, western tree squirrels, and a few other wild mammal species become infected tangentially with the virus but do not contribute significantly to virus amplification. |
Address |
Department of Biomedical and Environmental Health Sciences, School of Public Health, University of California, Berkeley 94720 |
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ISSN |
0002-9637 |
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Notes |
PMID:3318522 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2677 |
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Author |
Sabattini, M.S.; Monath, T.P.; Mitchell, C.J.; Daffner, J.F.; Bowen, G.S.; Pauli, R.; Contigiani, M.S. |
Title |
Arbovirus investigations in Argentina, 1977-1980. I. Historical aspects and description of study sites |
Type |
Journal Article |
Year |
1985 |
Publication |
The American Journal of Tropical Medicine and Hygiene |
Abbreviated Journal |
Am J Trop Med Hyg |
Volume |
34 |
Issue |
5 |
Pages |
937-944 |
Keywords |
Animals; Arbovirus Infections/*epidemiology/microbiology; Arboviruses; Argentina; Birds; Cattle; Child; Climate; Ecology; Encephalitis Virus, St. Louis; Encephalitis Virus, Venezuelan Equine; Encephalitis Virus, Western Equine; Encephalitis, St. Louis/epidemiology/microbiology; Encephalomyelitis, Equine/epidemiology/microbiology/veterinary; Encephalomyelitis, Venezuelan Equine/epidemiology/microbiology/veterinary; Geography; Horse Diseases/epidemiology/microbiology; Horses/microbiology; Humans |
Abstract |
This is the introductory paper to a series on the ecology of arboviruses in Argentina. Epizootics of equine encephalitis have occurred since at least 1908, principally in the Pampa and Espinal biogeographic zones, with significant economic losses; human cases of encephalitis have been rare or absent. Both western equine and eastern equine encephalitis viruses have been isolated from horses during these epizootics, but the mosquitoes responsible for transmission have not been identified. A number of isolations of Venezuelan equine encephalitis (VEE) virus were reported between 1936 and 1958 in Argentina, but the validity of these findings has been seriously questioned. Nevertheless, serological evidence exists for human infections with a member of the VEE virus complex. Serological surveys conducted in the 1960s indicate a high prevalence of infection of humans and domestic animals with St. Louis encephalitis (SLE), and 2 SLE virus strains have been isolated from rodents. Human disease, however, has rarely been associated with SLE infection. Only 7 isolations of other arboviruses have been described (3 of Maguari, 1 of Aura, 2 of Una, and 1 of an untyped Bunyamwera group virus). In 1977, we began longitudinal field studies in Santa Fe Province, the epicenter of previous equine epizootics, and in 1980 we extended these studies to Chaco and Corrientes provinces. The study sites are described in this paper. |
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English |
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0002-9637 |
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PMID:4037184 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2685 |
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