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FDA approves H1N1 vaccine from four manufacturers

About 45 million doses are expected to be available by mid-October. The U.S. has ordered enough vaccine for 195 million doses.

September 16, 2009|Thomas H. Maugh II

The Food and Drug Administration on Tuesday approved vaccines for the pandemic H1N1 influenza from four manufacturers, clearing the way for vaccine to be administered as soon as enough is available. The approval was announced to Congress by Health and Human Services Secretary Kathleen Sebelius.

The licensing approval means the vaccines are made properly and meet specific manufacturing and quality standards. Officials from the National Institute of Allergy and Infectious Diseases announced Friday that the vaccines were safe and produced adequate immunity with only one dose. Researchers had feared that two doses would be required, limiting the amount of vaccine available and complicating the logistics for delivering it.

The United States has ordered enough vaccine for 195 million doses, meaning that "we will have enough vaccine available for everyone," Sebelius said. About 45 million doses are expected to be available by the middle of October, and officials are targeting people in the highest-risk groups -- primarily pregnant women and healthcare workers.

In a normal year, about half the people who should receive the seasonal flu vaccine actually get it, and it seems likely that despite widespread publicity campaigns, the turnout for the swine flu vaccine will not be much higher.

Many people fear the vaccine because of its supposed "experimental" nature and perceived safety issues, but government scientists say it is virtually identical to the seasonal flu vaccine, which has been given safely to hundreds of millions of people.

The vaccines approved Tuesday are made by Australia's CSL, Switzerland's Novartis, France's Sanofi Pasteur and Maryland's MedImmune, which makes an inhalable vaccine that might be available by the end of the month.


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