Flu Scan for Mar 19, 2014

New H7N9 case in China
Flu risks for young kids

H7N9 sickens Hunan province man

China reported one new H7N9 influenza case today, in a 78-year-old man from Hunan province. The man is hospitalized in the city of Changsha, according to a provincial health ministry report translated and posted by FluTrackers, an infectious disease news message board.

The man is from Shaoyang city in southwestern Hunan province, according to a story today from Xinhua, China's state news agency.

His infection raises the H7N9 outbreak total to 396, according to a running list of human cases kept by FluTrackers. So far 260 of the cases have come during the outbreak's second wave, which began in October and has now wound down to just a few cases a week.

During the first wave of infections last spring, China reported 136 cases. The unofficial number of H7N9 deaths remains at 120.
Mar 19 FluTrackers thread
Mar 19 Xinhua
FluTrackers H7N9 human
case list


Mom's age, family poverty among risks for flu hospitalization in kids

Having younger mothers, living in poverty, household smoking, lack of household flu vaccination, and chronic illness all raised the risk for children under 5 of being hospitalized for influenza, according to data from US Emerging Infections Program sites.

Writing in The Pediatric Infectious Disease Journal, the research team detailed hospital data from 2005 through 2008 on 290 children 6 to 59 months of age who had lab-confirmed flu and 1,089 matched controls. They used conditional logistic regression to identify risk factors for hospitalization.

They found that the risk for hospitalization for flu was higher with maternal age 26 years or younger (odds ratio [OR], 1.8), household income below the poverty level (OR, 2.2), smoking by at least half of household members (OR, 2.9), lack of household flu vaccination (OR, 1.8), and the presence of chronic illnesses. The OR was 11.8 for hematologic or oncologic conditions, 2.9 for pulmonary conditions, and 3.8 for neurologic conditions.

The researchers also found that full flu immunization decreased the risk among kids under 2 years (OR, 0.5) but not in those 2 and older.
Mar 17 Pediatr Infect Dis J abstract

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