Sero-epidemiological Studies on Influenza Epidemics
نویسندگان
چکیده
منابع مشابه
An Epidemiological Analysis of Summer Influenza Epidemics in Okinawa
Objective This study evaluates the difference between winter influenza and summer influenza in Okinawa. Methods From January 2007 to June 2014, weekly rapid antigen test (RAT) results performed in four acute care hospitals were collected for the surveillance of regional influenza prevalence in the Naha region of the Okinawa Islands. Results An antigenic data analysis revealed that multiple H1N1...
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BACKGROUND Agent based models (ABM) are useful to explore population-level scenarios of disease spread and containment, but typically characterize infected individuals using simplified models of infection and symptoms dynamics. Adding more realistic models of individual infections and symptoms may help to create more realistic population level epidemic dynamics. METHODS Using an equation-base...
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A total of 374 dogs, 252 from five military kennels and 122 privately owned, were tested for Ehrlichia canis antibody. Sera were tested at a 1:20 dilution by indirect fluorescent antibody with the use of E. canis cell-culture antigen slides. The overall prevalence of E. canis antibody was 33%. Antibody prevalence among military dogs (29%) was significantly lower than among privately owned dogs ...
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Antibodies against bovine leukaemia virus were detected in 322 of 1,511 serum samples from cattle of various age groups and both sexes, in various herds of the country. A variable degree (5.4 to 75%) of positive reactors was recorded in individual herds where no systematic breeding policy had been followed. Antibodies were also detected in clinically healthy cattle, having normal haematological...
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Epidemiological studies in naturally infected persons have shown that there is a significant relation between antibody levels to the current circulating virus and morbidity. Serological findings and morbidity data suggest: (1) that the serological survey is a more sensitive indicator for influenza outbreaks than is the clinical diagnosis and (2) that the 5-14 age group is first affected when an...
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ژورنال
عنوان ژورنال: Japanese Journal of Health and Human Ecology
سال: 1967
ISSN: 0368-9395,1882-868X
DOI: 10.3861/jshhe.33.555