News & Perspective

Jul 25, 2007

Jul 25, 2007

Researchers warn H5N1 reassortment can occur beyond winter months

(CIDRAP News) – World health experts have been working under a general assumption that a feared reassortment between human and avian influenza viruses—a scenario that could spark a pandemic—might only occur during a short winter interval, but researchers who recently examined virus circulation patterns warn that time frames for coinfection are wider and sometimes unpredictable.