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A member asked:
How long for a mcv4 vaccine to start working?
A doctor has provided 1 answer
Exact time unknown: The effectiveness studies that were published & supported approval of the vaccine efficiency were done at 28 days after dosing. Earlier response may be possible, but the vaccine is not promoted as a way to stop secondary cases(after exposure)unless used in conjunction with oral or injected antibiotics for those considered at risk.
Answered 6/21/2012
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