lunes, 5 de agosto de 2013

CDC - Seasonal Influenza (Flu) - Influenza A (H3N2) Variant Virus

CDC - Seasonal Influenza (Flu) - Influenza A (H3N2) Variant Virus

Influenza A (H3N2) Variant Virus

Influenza viruses that normally circulate in pigs are called “variant” viruses when they are found in people. Influenza A H3N2 variant viruses (also known as “H3N2v” viruses) with the matrix (M) gene from the 2009 H1N1 pandemic virus were first detected in people in July 2011. The viruses were first identified in U.S. pigs in 2010. In 2011, 12 cases of H3N2v infection were detected in the United States (Indiana, Iowa, Maine, Pennsylvania, and West Virginia). In 2012, 309 cases of H3N2v infection across 12 states were detected.  Reports of H3N2v infections in 2013 began in June with the state of IndianaExternal Web Site Icon. These infections have mostly been associated with prolonged exposure to pigs at agricultural fairs. Limited human-to-human spread of this virus has been detected in the past as well (Iowa, West Virginia) but no sustained or community spread of H3N2v has been identified at this time. It's possible that sporadic infections and even localized outbreaks among people with this virus will continue to occur. The Centers for Disease Control and Prevention (CDC) continues to monitor this situation closely and will report cases of H3N2v and other variant influenza viruses weekly in FluView and on the case count tables on this website. CDC has developed guidance for the public to protect against H3N2v, and guidance for public health and health care workers.
See Past Updates »
Basics
What is H3N2v, Who has Been Impacted, Prevention, Treatment…
Prevention
Protect Yourself, Take Action to Prevent the Spread, Fact Sheets…
Treatment
Drugs to Treat H3N2v, Stay Home When Sick, Caring for Someone Who is Sick…
News & Highlights
H3N2v Developments, Updates, Feature Stories, Spotlights…
Health Care Providers
CDC Health Advisory, Prevention Strategies, Diagnostic Testing…
Guidance for Public Health
Surveillance Guidance, Laboratory Testing Guidance…
Other Guidance
Interim Guidance for Fair Organizers and School Administrators…
Materials & Resources
Printable materials including Flyers and Posters, Webinars…

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