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| https://www.cdc.gov/flu/pdf/swineflu/prevent-spread-flu-pigs-at-fairs.pdf |
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Not unexpectedly, since there were reports of at least one person being tested for swine flu after an outbreak of H1N2 was detected in some pigs at the Henry County Fair in mid-August, today's FluView has details on a confirmed novel H1N2v infection from Ohio.
Novel Influenza A Virus:
One additional human infection with a novel influenza A virus was reported by Ohio during week 34. The person was infected with an influenza A (H1N2) variant (H1N2v) virus and reported exposure to swine in a fair setting during the week preceding illness onset. This patient was younger than 18 years of age, was not hospitalized, and has fully recovered from their illness. No human-to-human transmission of this virus has been identified.
To date, a total of 20 variant virus infections has been reported in the United States during 2017. Eighteen of these were H3N2v viruses (Texas [1], North Dakota [1], Pennsylvania [1], and Ohio [15]) and two were H1N2v viruses (Ohio [2]).
Early identification and investigation of human infections with novel influenza A viruses are critical to ensure timely risk assessment and so that appropriate public health measures can be taken. Additional information on influenza in swine, variant influenza infection in humans, and strategies to interact safely with swine can be found at http://www.cdc.gov/flu/swineflu/index.htm.
H1N2v has been the least common swine flu virus to jump to humans, with today's case making just 11 cases reported since 2005. H3N2v is, by far, the most common (n=390), followed by H1N1v with 20.
With state and county fair season continuing over the summer and into fall, it would not be surprising to see additional, scattered reports of swine variant infection. While most cases are mild, the CDC pays close attention whenever a flu virus jumps species.
For more information on swine variant viruses, and how to protect yourself when in contact with farm animals, the CDC provides the following guides.CDC Assessment
Sporadic infections and even localized outbreaks among people with variant influenza viruses may occur. All influenza viruses have the capacity to change and it's possible that variant viruses may change such that they infect people easily and spread easily from person-to-person. The Centers for Disease Control and Prevention (CDC) continues to monitor closely for variant influenza virus infections and will report cases of H3N2v and other variant influenza viruses weekly in FluView and on the case count tables on this website
- Key Facts for People Exhibiting Pigs at Fairs[545 KB, 2 pages]
- Take Action to Prevent the Spread of Flu Between People and Pigs[1.3 MB, 2 pages]
- Educational Posters[389 KB, 1 page]
- Compendium of Measures to Prevent Disease Associated with Animals in Public Settings, 2013.
- Reduce Your Risk (English)[22 KB, 1 page] | (Spanish)[22 KB, 1 page]
- Measures to Minimize Influenza Transmission at Swine Exhibitions, 2016 – NASAHO and NASPHV[97 KB, 8 pages]
