Asthma Cases Are Getting More Severe In The U.S.

It's Asthma Peak Week, and recently, a record number of Americans are visiting hospitals, or even dying, from severe cases.

A record number of asthma sufferers are dying. 

"It's the highest increase in the death rate from asthma in 20 years," said Kenneth Mendez, president and CEO of the Asthma and Allergy Foundation of America. "It grew to over 4,100 people, and it's hovered around 3,600 in prior times."

A new report from the Asthma and Allergy Foundation of America ranked cities by asthma prevalence, ER visits and asthma-related deaths. It found 19 of the top 20 worst cities for asthma are in the eastern half of the U.S., or the Midwest. Detroit, Michigan ranked at the top.