California pertussis epidemic may be caused by vaccine refusal
by John Gever
California is facing what could be the state’s biggest outbreak of pertussis since 1958, its top public health official said.
“Whooping cough is now an epidemic in California,” said Mark Horton, MD, MSPH, director of the California Department of Public Health, in a statement. “Children should be vaccinated against the disease and parents, family members and caregivers of infants need a booster shot.”
As of June 15, 910 cases had …
California pertussis epidemic may be caused by vaccine refusal

















