Pertussis awareness
PERTUSSIS IS A common disease in the United States, with frequent outbreaks and periodic epidemics every three to five years. It is also called whooping cough because of the “whooping” sound people often make...
PERTUSSIS IS A common disease in the United States, with frequent outbreaks and periodic epidemics every three to five years. It is also called whooping cough because of the “whooping” sound people often make...