| detection of influenza a viruses and influenza epidemics in wild pelagic birds by sentinels and population studies. | field experiments with domestic ducks as sentinels and virological and serological population observations on wild pelagic birds on a seabird-breeding island in the baltic sea and on rivers and lakes near berlin were conducted to detect the influenza a virus circulation and epidemics in wild pelagic bird populations. influenza a virus isolates were detected in tracheal and cloacal swabs from sentinel ducks and from healthy pelagic birds. influenza a virus epidemics with different subtypes in an ... | 1982 | 7170852 |