Second variant H3N2 case confirmed in Ohio
Ohio health officials have reported another variant H3N2 (H3N2v) infection, the nation's second such case this year, the US Centers for Disease Control and Prevention (CDC) said today.
As with the first case, the patient had close contact with pigs the week before he or she got sick, and genetic analysis of a sample from the patient shows that it is genetically similar to the first case, which the CDC reported last week. However, no epidemiologic links were found between the two case-patients.
An investigation into the latest illness found no ongoing human-to-human transmission, and the patient's illness did not require hospitalization.
The nation's first human infections with H3N2v were detected in 2011, with a peak of 309 cases in 2012, nearly all in people who had links to swine. Since then, illness numbers have declined, with only 19 cases reported last year.
Aug 29 CDC FluView report
CDC H3N2v case-count table
Aug 25 CIDRAP News scan "CDC: Variant H3N2 case reported in Ohio"
H7N9 case reported in China
China has reported a new case of H7N9 avian influenza, in a 53-year-old male welder, according to yesterday's weekly avian flu update from the United Nation's Food and Agriculture Organization (FAO).
The man, who lives in Urumqi city in the Xingiang Uyghur Autonomous Region, fell ill on Aug 3 and tested positive for H7N9 on Aug 16, the report says. It does not list his condition or say whether he was hospitalized, but an H7N9 case listed maintained by FluTrackers, an infectious disease message board, says he was hospitalized Aug 8.
About 3 months ago, a member of the man's household bought about 20 chickens to raise, the FAO report says.
The last report of an H7N9 case in China surfaced on Jul 7. The new case raises the count of H7N9 illnesses in China to 453, according to the FluTrackers case list.
Aug 28 FAO report
FluTrackers H7N9 case list
Jul 8 CIDRAP News item