878 followers
The estimated incidence of pertussis in people aged 50 years old in the United States, 2006–2010 https://t.co/qL3OIsYvoV impact on infants
The estimated incidence of pertussis in people aged 50 years old in the United States, 2006–2010 https://t.co/qL3OIsYvoV impact on infants
The estimated incidence of pertussis in people aged 50 years old in the United States, 2006… https://t.co/w9xBPrhHrx