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2 swine flu vaccine doses for kids under 10 likely
Source: Agencies |
October 15, 2009, Thursday
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Online Edition
Online Edition
TEST results of its swine flu vaccine suggest that children under 10 are likely to need two shots to be fully protected, vaccine maker Sanofi Pasteur said yesterday.
Federal officials said the news is not surprising, since this age group needs two doses of regular seasonal flu vaccine the very first time they ever are given a flu vaccine for full immunity to develop.
The new Sanofi results back up what government tests are showing, said Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases. For younger children, the protection from one shot is "modest but not sufficient to allow for one dose to do the trick," he said.
Sanofi is the only company licensed in the United States to make vaccine for children as young as 6 months old. The company tested two strengths of the vaccine, given as two shots 21 days apart. The vaccine was tested in 474 children ages 6 months through 9 years old.
Only half of children 6 months to 3 years old had enough protection after one shot of the higher strength vaccine, as did three-fourths of children 3 to 9 years old, Sanofi reported.
For adults, one shot of the higher strength vaccine appears to be enough, Sanofi reported earlier.
Another option for people without medical problems is FluMist, a nasal spray vaccine. It is approved for healthy people 2 to 49 years old. The nasal spray accounts for most of the vaccine available now, although shots are starting to make their way to states. Pregnant women and young children are among the groups most urged to seek the vaccine as soon as it is available.
Federal officials said the news is not surprising, since this age group needs two doses of regular seasonal flu vaccine the very first time they ever are given a flu vaccine for full immunity to develop.
The new Sanofi results back up what government tests are showing, said Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases. For younger children, the protection from one shot is "modest but not sufficient to allow for one dose to do the trick," he said.
Sanofi is the only company licensed in the United States to make vaccine for children as young as 6 months old. The company tested two strengths of the vaccine, given as two shots 21 days apart. The vaccine was tested in 474 children ages 6 months through 9 years old.
Only half of children 6 months to 3 years old had enough protection after one shot of the higher strength vaccine, as did three-fourths of children 3 to 9 years old, Sanofi reported.
For adults, one shot of the higher strength vaccine appears to be enough, Sanofi reported earlier.
Another option for people without medical problems is FluMist, a nasal spray vaccine. It is approved for healthy people 2 to 49 years old. The nasal spray accounts for most of the vaccine available now, although shots are starting to make their way to states. Pregnant women and young children are among the groups most urged to seek the vaccine as soon as it is available.
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