avian

BioCryst and Avian Flu: Underappreciated Call Option or Just Overhyped? (BCRX)

Avian flu or bird flu is a contagious disease of birds caused by influenza A viruses. All birds are susceptible to avian flu infection, yet wild bird species carry 25 sub-types (16 HA or hemagluttinin and 9 NA or neuraminadase) of influenza viruses without being harmed by them. As such, wild birds are considered the natural reservoir of influenza viruses.