There were more than 9,900 cases of whooping cough in California in 2014 through Nov. 26. Above, Tyree Harper, 12, receives the whooping cough vaccine during a school readiness event at Jesse Owens Park in Los Angeles in August. (Anne Cusack / Los Angeles Times)
By Rong-Gong Lin II contact the reporter
There were more than 9,900 cases of whooping cough in California in 2014 through Nov. 26. Above, Tyree Harper, 12, receives the whooping cough vaccine during a school readiness event at Jesse Owens Park in Los Angeles in August. (Anne Cusack / Los Angeles Times)