
School children who have never had a flu shot may need to get vaccinated four times in the fall – twice for seasonal flu, twice for pandemic swine flu – officials at the CDC told health professionals on Wednesday.
Most everyone else should expect three shots.
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“This vaccine campaign will unfold quite differently than seasonal flu,” said Wortley, in a conference call with health care professionals nationwide on Wednesday. “This is a huge endeavor we’re gearing up for.”
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Preservative-free shots will be available for children and pregnant women, about 20 percent of the lots manufactured, Wortley said. They will either come in single-dose injections or as Flu Mist, the live virus that is squirted into the nose.Adults will most likely get their shots from multi-dose vials which contain Thimerisol, including very low levels of mercury.
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There are a number of newer vaccine technologies that are now under development, including cell-based vaccines and vaccines grown in fall armyworm cells. Those won’t be among the tier 1 vaccines used in the United States, Wortley said.
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Wortley said the CDC is setting up a process for tracking adverse reactions to the shots, including the rare but potentially fatal Guillain-Barré syndrome, an autoimmune disorder that can be temporarily paralyzing.






















