Remember to get your vaccine booster — adults can lose immunity as they age

A new study from Public Health Ontario has shown how immunizations you receive as a child can wane into your adult years.The study, published last week in the journal Vaccine, looked at whooping cough, or pertussis, and found that vaccine effectiveness falls “rapidly” a decade after the vaccine.Story continues below“The longest it was since your last dose of pertussis vaccine the less effective it was,” Jeffrey Kwong, co-author of the study and research scientist at Public Health Ontario. 

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