Serological evidence of avian influenza virus and canine influenza virus infections among stray cats in live poultry markets,China |
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| Institution: | 1. National Demonstration Center on Experiment Teaching of Fisheries Science, Shanghai Ocean University, Shanghai 201306, China;2. Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao 266237, China;3. Research Centre of the Agriculture Ministry on Environmental Ecology and Fish Nutrition, Shanghai Ocean University, Shanghai 20136, China;4. Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai Ocean University, Shanghai 201306, China;5. China-ASEAN Center for Joint Research and Promotion of Marine Aquaculture Technology, China;1. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, People''s Republic of China;2. University of Chinese Academy of Sciences, Beijing 100049, People''s Republic of China;3. Tianjin bohai sea fisheries research institute, Tianjin 300457, People''s Republic of China |
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| Abstract: | From January 2010 to January 2012, we collected sera samples from 700 stray cats living in close proximity to poultry farms or poultry markets in 4 provinces in China. A number of cats had evidence of avian and canine influenza virus infection: avian H9N2 24 by HI ≥1:20 and 16 by microneutralization (MN) assay ≥1:80]; avian H5N1 (9 by HI ≥1:20 and 3 by MN assay ≥1:80) and canine H3N2 (32 by HI ≥1:20 and 18 by MN ≥1:80). Bivariate analyses revealed that cats sampled near live poultry markets and cats with influenza-like-illness were at increased risk of having elevated antibody titers by HI against avian H9N2, avian H5N1, or canine H3N2 viruses. Hence, cats may play a very important role in the ecology of novel influenza viruses and periodic epidemiological surveillance for novel influenza infections among stray cats could serve as an early warning system for human threats. |
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| Keywords: | First report H5N1 Cats LPM |
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