John Baird
Coatesville, Pennsylvanie, États-Unis
>>Not so sure. I've heard that the vaccine used at one stage isn't as effective as what's in use now. Maybe John can comment, but I've heard a recommendation that adults above some age should check with their doctors.
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>General consensus is that vaccination does not provide 100% absolute lifetime immunity.
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>But yes, adults should consult with PRACTICING physicians.
LOL
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