Virginia officials are asking healthy adults to step aside and allow children, pregnant women and people with underlying health problems the first crack at getting H1N1 influenza vaccinations.

Dr. Karen Remley, the state's health commissioner, said at a media briefing Friday that the federal Centers for Disease Control and Prevention has allocated fewer than 400,000 doses of vaccine to Virginia so far because of manufacturing delays, and no vaccination sites have yet received all of what they'd originally anticipated.

She also said about 3.1 million Virginians fit into high-risk categories, slightly less than half the state's population, so there's already a wide mismatch in vaccine supply and demand.

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