On April 21, the United States reported on the existence of 2 human cases of swine influenza A (H1N1) infection. On 23 April, through intensified surveillance efforts, a total of 7 confirmed human cases of swine influenza A (H1N1) infection, were reported.
Influenza of swine origin detected retrospectively in a human with illness in November 2008. Swine influenza (SI) is an acute viral infection of the respiratory tract in pigs. Subclinical infections are also common. The mortality is low and recovery usually occurs within 7-10 days.
The document characterises the risk to human health in Europe from highly pathogenic avian influenza viruses in birds and animals. The report identifies areas requiring additional scientific and public health work both as single pieces of work and for risk monitoring by ECDC and its partners.
The document determines the risk to human health in Europe from highly pathogenic avian influenza viruses in birds and animals and identifies areas requiring additional scientific and public health work both as single pieces of work and for risk monitoring by ECDC and its partners.
The objective of this revised document is to further determine the risk to human health in Europe from highly pathogenic avian influenza viruses in birds and animals. Specifically the additional risk that arises from the recent emergence and extension of A/H5N1 viruses into the European Union and elsewhere in the world, and the changed biology of the viruses among wild and domestic birds.