Studies: 1 dose of swine flu vaccine works

September 10, 2009 2:10:10 PM PDT
American and Australian researchers report that the new swine flu vaccine is strong enough to protect adults with one shot. And it takes effect in eight to 10 days.

That's good news because they had thought it might take two to protect people from the new virus that is beginning to spread across the country.

Now, people will need a regular winter flu shot - already available - and a swine flu shot in October when that is ready. Originally there has been concern a total of three shots would be needed.

Australian shot maker CSL Ltd. published results of a study that found 75 percent to 96 percent of vaccinated people should be protected with one dose. U.S. data to be released Friday confirms those findings and shows the protection starts rapidly, lead U.S. scientist Dr. Anthony Fauci of the National Institutes of Health told The Associated Press.

RELATED INFORMATION:

FAQs about swine flu
Additional swine flu resources
Transcript of 6abc.com's swine flu chat with local experts

RELATED LINKS:

CDC Swine Flu site
World Health Organization

RELATED INTERACTIVE:

Swine flu cases around the world

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