CHICAGO (WLS) -- Tuesday is "World Prematurity Day" and people are wearing purple to promote awareness about premature births, which is the No. 1 cause of death in children under the age of 5.
Buildings around the globe will also glow purple for prematurity awareness
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November marks Prematurity Awareness Month.
The March of Dimes has invested millions at its Prematurity Research Centers, including one in Chicago.