We all know that having the flu is bad enough for anyone, more and more doctors are now seeing cases of whooping cough here in Mid-Michigan.

According to WILX-TV 10,  Dr. Susan Fedewa says parents need to listen for the distinctive "whoop" sound as kids try to catch their breath during coughing fits.  Other symptoms include sneezing, a runny nose, and a fever.

Whooping cough can kill infants.  It can also cause pneumonia and swelling of the brain.  Doctors recommend all children get vaccinated against it.