4 doctors weighed in:
Can a child under 5 years get the whooping cough even though he received his shots as scheduled?
4 doctors weighed in

Dr. Patrick Hieber
Pediatrics
3 doctors agree
In brief: Whooping cough
The pertussis vaccine is only ~ 80-85% effective.
That is why it is so important that all children be completely immunized. The greater the # of immunized children around each individual greatly decreases the chance of an exposure of an immunized child and hence illness in that child. This is called "herd immunity"., .

In brief: Whooping cough
The pertussis vaccine is only ~ 80-85% effective.
That is why it is so important that all children be completely immunized. The greater the # of immunized children around each individual greatly decreases the chance of an exposure of an immunized child and hence illness in that child. This is called "herd immunity"., .
Dr. Patrick Hieber
Dr. Patrick Hieber
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1 comment
Dr. James Ferguson
The likelihood of an infection intense enough to cause death declines rapidly after the first pertussis vaccine, but none should be considered fully protected, ever.
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