Elmberg, J.

virus mallard infection influenza fluenza autumn subtype body mass ottenby migration effect study origin disease recovery sweden munster latorre-margalef prevalence feather figure body condition population sample pattern lpai infection period wallensten dynamic ct-value olsen condition length species virus subtypes article number isotope ecology result fi rst band recovery data ottenby bird observatory season waterfowl analysis status infection status fouchier duration hatch-year variation fluenza viruses virus infection hobson downloaded factor ficant signi 391 82 kalmar autumn periods swedish kalmar direction munster vj subtype diversity franson flint waldenstrom april interaction university stopover month occasion wassenaar science diversity zoonotic table