Pertussis Epidemic in California (6-23-2010)

Pertussis (whooping cough) has been rapidly increasing in California this year. As of June 5, 2010, there has been a 4-fold increase in the number of pertussis cases reported in California compared to the same time period in 2009. If current trends continue, California could experience a 50 year high in pertussis despite the availability of a vaccine to protect both adolescents and adults.