California public health officials have asked pregnant women, elderly as well as children to get vaccinated for whooping cough

On Monday, children age 7 and older; adults age 64 and older; women before, during and immediately after pregnancy were included in vaccination recommendations issued by the Department of Public Health.
"It's time for Californians to help us by getting vaccinated and protecting themselves," Chavez said.
He also added that the department had provided free vaccines to local hospitals and community clinics to increase awareness about the need for vaccination.
Source-Medindia