engleski

The Epidemiological Environment of Avian Influenza H5N1 Outbreaks in Wild Birds in Croatia

Following the spread from its origins in China, Asian lineage highly pathogenic avain influenza H5N1 was first recorded in Europe in poultry in Turkey andin oulltry and wild birds in Romania in early October 2005. On 19 October 2005 Croatia only the second European country to record an outbreak in wild birds, during which the virus was isolated from Mute Swans (Cygnus olor). Subsequent surveillance in Croatia revealed further instances of H5N1 in dead and sick Mute Swans in 2006, and also in apparently asymptomatic infection in Black-headed Gulls (Larus ridibundus), but not in poultry. These observations are used here to illustrate problems in the interpretation of information of potential use in elucidating the epidemiology of this virus subtype in outbreaks in poultry and wild birds.

avian influenza; H5N1; wild birds; poultry; fish-farms; Croatia

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