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US vaccine panel to discuss waning effectiveness, new shots

NEW YORK (AP) – A panel of medical experts meeting this week in Atlanta will take up the issue of waning protection from some vaccines.

No vaccine is perfect, and some people who get vaccines will still get sick. But health officials have noted significant numbers of vaccinated people getting sick in some outbreaks.

Some drugmakers are developing new vaccines especially for older people, using new kinds of additives to boost effectiveness. On Wednesday, the advisory committee is expected to consider recommending one such vaccine, a new shingles vaccine approved last week.

FILE – This Jan. 10, 2013 file photo shows vials of flu vaccines in Philadelphia. No vaccine is perfect, and it can take many years to find out how well a new vaccine works and how long it lasts. The annual flu vaccine is a particularly hard one to nail. The virus changes quickly and spreads easily. U.S. health officials make their best guess each spring about the formula for the next flu season. (AP Photo/Matt Rourke, File)

The federal panel recommends what vaccines children and adults should receive and when.

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