Depending on what strain of influenza virus is circulating in a given year, the letters and numbers may indicate the risk of spreading beyond the usual prevalence of infection and expected ...
Influenza is a common respiratory virus that is categorized into four types: A, B, C and D. Type C only causes mild infections and type D is not believed to infect humans. However, influenza A and ...
Influenza virus is an infectious agent belonging to the virus family Orthomyxoviridae that causes a respiratory tract infection (influenza or 'flu') in vertebrates. There are three main species ...
Influenza or flu virus remains infectious in refrigerated raw milk for up to five days, according to a new study. The findings come at a time when outbreaks of bird flu -- a different subtype of ...