ECDC rapid risk assessment: Reassortment seasonal influenza virus and swine influenza virus

Risk assessment

9 Jul 2009

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New strain of swine influenza identified in two workers on a pig farm in Canada. 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.

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090709_TER_Swine_influenza_Canada.pdf - EN - [PDF-69.6 KB]

Related diseases and public health areas

Swine influenza in humans

Swine influenza is a respiratory disease of pigs caused by type A influenza viruses that regularly cause outbreaks of influenza in pigs. Influenza viruses that commonly circulate in swine are called “swine influenza viruses” or “swine flu viruses.” Like human influenza viruses, there are different subtypes and strains of swine influenza viruses.

Seasonal influenza

Seasonal influenza is a preventable infectious disease with mostly respiratory symptoms. It is caused by influenza virus and is easily transmitted, predominantly via the droplet and contact routes and by indirect spread from respiratory secretions on hands etc.

Avian influenza

Avian influenza is an infectious viral disease mainly found in birds, but under certain circumstances infections can also occur in humans even though the risk is generally very low.

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ECDC rapid risk assessment: Reassortment seasonal influenza virus and swine influenza virus

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Related diseases and public health areas

Swine influenza in humans

Seasonal influenza

Avian influenza

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