Mass vaccination is ineffective in inducing 'herd immunity' for:
APoliomyelitis
BTetanus
CNone of the options
DMeasles
Adverse reactions following whole cell pertussis immunization include:
AFever
BLocal swelling
CExcessive cry
DAll of the options
Which of the following vaccines is classified as a killed vaccine?
AVaricella
BBCG
COPV
DMeningococcal vaccine
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