Influenza Virus Surveillance in Coordinated Swine Production Systems, United States.
نویسندگان
چکیده
To clarify the epidemiology of influenza A viruses in coordinated swine production systems to which no animals from outside the system are introduced, we conducted virologic surveillance during September 2012-September 2013. Animal age, geographic location, and farm type were found to affect the prevalence of these viruses.
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ورودعنوان ژورنال:
- Emerging infectious diseases
دوره 21 10 شماره
صفحات -
تاریخ انتشار 2015