Nasal swine flu vaccine recalled...
Published (2009-12-23 14:08:00)
WASHINGTON — Drugmaker MedImmune is recalling nearly 5 million doses of swine flu vaccine because the nasal spray appears to lose strength over time, federal health officials announced Tuesday. The vaccine recall is the second this month caused by declining potency and comes as public health officials urge millions of Americans to get vaccinated against swine flu. The action affects more than 4.6 million doses, but the vast majority have...