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Pandemic flu vaccines on way after FDA approval
By Steve Sternberg

The federal government on Wednesday approved four pandemic flu vaccines, saying each one triggers “robust” protection in most healthy adults within 10 days after a single dose, much like seasonal flu vaccine. The Food and Drug Administration said the vaccines designed to protect against the new H1N1 flu (swine flu) will be shipped to national distribution centers when the first lots arrive in about four weeks.