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Early trials indicate H1N1 flu vaccine working with just one shot

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Early clinical trials are showing that the H1F1 flu vaccine is working with just one shot or dose, instead of two, The New York Times reported -- and that means vaccine supplies will go twice as far as predicted.

The significance? If the one-shot treatment holds, that means it should be possible to vaccinate all 159 million people in the Centers for Disease Control and Prevention's high risk groups: pregnant women, people under age 24 or caring for infants, people with high-risk medical conditions, and health care workers.

First dose batches coming in early October

In a related development U.S. Health Secretary Kathleen Sebelius said the United States now expects to receive the first batch of flu vaccine in early October, a few weeks earlier than expected, the Agence France-Presse reported Sunday.

The accelerated delivery will likely gladden the hearts of health administrators, educators, and parents alike, who were concerned about a rise in flu cases and/or the late arrival of vaccines to deal with the viral threat.

The H1N1 flu did not fade as seasonal flu does in the late spring and summer, but persisted, especially in summer camps, The Times reported. The initial trials of the vaccine show that adults who got only a single dose were protected within eight to ten days.

Comment: Here's hoping the initial trials of 1-dose protection hold. Having taught at the college level for several years, I can attest that an early start to the virus/flu season has occurred, at least in the New York metropolitan area: I can't recall a year in which there were so many students coughing, sneezing, and wheezing at the start of fall classes in September.

Impact on Investors: If the H1N1 vaccine substantially decreases the incidence of the flu in 2010, that could further support U.S. GDP growth and the recovery. The reason? Less lost productivity from employees who miss work, due to the illness. All other factors being equal, the healthier the workforce is (including the absence of the flu), the more productive it is.

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Last updated: November 22, 2009: 10:06 PM

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