Infectious diseases experts say many Americans fell behind on their whooping cough vaccinations during the COVID-19 pandemic, which they say has compounded the recent uptick in cases.

Pertussis, commonly referred to as whooping cough, is a serious and highly contagious respiratory illness. There is a vaccine available for whooping cough, but only 30% of adults in the U.S. received it in the past 10 years.  

The pandemic has meant many kids have put off doctor visits and recommended shots. Experts worry that means some pockets of the U.S. are now more vulnerable to outbreaks of measles and meningitis.

Last year, the Centers for Disease Control and Prevention reported a drop in routine childhood vaccinations as families stayed home to slow the spread of coronavirus. Now, they’re being reminded to not let those vaccines lapse.

Recently confirmed cases of pertussis, also known as whooping cough, in North Georgia have some residents questioning whether the vaccine is effective.