Risk assessment: Swine-origin triple reassortant influenza A(H3N2) variant viruses in North America
Following recent increased reporting of human infections in the US with an influenza A(H3N2) variant virus of swine origin (A(H3N2)v), ECDC has updated its risk assessment. It concludes that the swine-origin influenza A(H3N2)v viruses do not currently pose a serious risk to human health in general and Europe in particular.
Facts about swine influenza
Swine influenza is an infection caused by any one of several types of swine influenza viruses.
Surveillance and disease data for zoonotic influenza
ECDC’s annual surveillance reports provide a wealth of epidemiological data to support decision-making at the national level. They are mainly intended for public health professionals and policymakers involved in disease prevention and control programmes.
Epidemiological updates on influenza in swine
Situation updates on a currently evolving outbreak or a public health threat. The epidemiological updates typically contain a description of case numbers, temporal and geographic distribution, as well as age and sex distribution. It can also include information on the identified or potential risk factors and assessments.
Scientific opinion on the possible risks posed by the influenza A (H3N2v) virus for animal health and its potential spread and implications for animal and human health
Swine are an important host in influenza virus ecology since they are susceptible to infections with both avian and human influenza A viruses.
True swine influenza in humans: recent different findings in the United States and Europe (Germany)Archived
This report describes the investigation of two cases of febrile respiratory illness caused by swine influenza A (H3N2) viruses identified on the 19th and the 26th August 2011 in two different states in the US (Indiana and Pennsylvania).
Influenza A (H3N2)v Virus in Humans and Swine in the United States – an updateArchived
A report in the US Centers for Disease Control and Prevention (CDC) MMWR this week describes the investigation of mild respiratory illness among swine and people at a county fair in Indiana, USA between 8 and 14 July 2012. This is an important report as it is very clearly documents simultaneous detection of H3N2v influenza viruses in humans and swine in close contact.