Flu Scan for Mar 25, 2015

first_imgCDC: Flu vaccination averted 4,500 deaths per yearInfluenza vaccination from the 2005-06 season through last season prevented an estimated 40,127 deaths, or 4,458 a year, US Centers for Disease Control and Prevention researchers reported this week in Vaccine.The team applied a Monte Carlo analysis to weekly US age-group–specific data for nine flu seasons ending with 2013-14. They estimated that 40,127 deaths were averted over that period (95% confidence interval, 25,694 to 59,210), with a high of 9,398 during the 2012-13 season, which was dominated by the H3N2 strain, as this season has been.The low estimate was 222 deaths averted during the 2009-10 pandemic, which was marked by a monovalent pandemic-specific vaccine that arrived after the fall peak in 2009 had passed.The investigators broke down their estimates by age-group (0.5 to 2 years, 5 to 19, 20 to 64, and 65 and older). They found that 88.9% of deaths prevented were in the oldest group.They called their projections conservative because they don’t include indirect vaccination effects. They noted that the number of lives saved via flu vaccination is considerable, even when vaccine effectiveness is modest, such as during the 2012-13 season.Mar 23 Vaccine study China reports another H5N1 case in Yunnan provinceChinese officials confirmed an H5N1 avian flu case in Yunnan province today, the second in 3 days, Hong Kong’s Centre for Health Protection (CHP) reported.A 17-year-old boy in Kunming, Yunnan’s capital and largest city, developed a fever and headache on Mar 13 and was hospitalized on Mar 20, where he is currently listed in critical condition. The CHP statement said that a clinical specimen was positive for H5N1 but does not mention recent poultry exposure.Provincial authorities on Mar 23 reported that a 34-year-old man in Kunming was likewise hospitalized with H5N1. He also developed symptoms on Mar 13 but had poultry exposure. Yunnan province lies adjacent to Myanmar, Laos, and Vietnam, but Kunming is about 150 miles north of the nearest border, with Vietnam.The boy’s infection is China’s fourth H5N1 case in 2015. “Locally, we will remain vigilant and work closely with the World Health Organization and relevant health authorities to monitor the latest developments,” a spokesman for Hong Kong’s Department of Health said.Mar 25 CHP statement Mar 23 CIDRAP News scan on previous caselast_img

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