Whooping cough might be evolving to outsmart the current vaccine.
That’s according to a study in the Journal of Infectious Diseases.
Researchers says the changing strains may have serious consequences in future outbreaks, but stress the vaccine remains highly effective in protecting the most vulnerable babies.
Nationally, rates of "pertussis" are up. And Illinois is no exception. The Illinois Department of Public Health reports just over one thousand cases of the disease known as "whooping cough" already this year.