The Fresno County Health Department has already confirmed 35 cases of whooping cough this year. 20 more are under investigation. Children's Hospital has 15 confirmed cases.
Whooping cough, also known as pertussis is a contagious respiratory illness. Young patients are often infected by a family member. Symptoms are similar to the common cold -- cough, runny nose or fever. Infants younger than six months are most vulnerable.
Dr. David Pugatch said, "Young children under six months stop breathing may turn blue or have seizures."
A whooping cough vaccine is available. Parents are encouraged to get vaccinated before leaving the hospital with a newborn baby. Health officials suggest a booster shot if you haven't had one in the last five to ten years.