CHICAGO (CBS) — Illinois’ top health official says myths about vaccination may be one reason why this state is seeing so many new cases of whooping-cough.

Last year in Illinois, there were more than 2,000 cases of pertussis, better known as whooping cough.

State Health Director Dr. LaMar Hasbrouck says the disease is preventable by vaccine.

So, he said, a rise means many aren’t getting their shots.

Some are purposely not getting their kids vaccinated, he said.

Hasbrouck is the guest on WBBM Newsradio’s “At Issue” program, and you can hear more of his comments Sunday at 9:30 a.m. and 9:30 p.m.

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