Jessica Barnes of Urbana is the mother of Peyton, 5, who is undergoing chemotherapy for leukemia. The treatments wipe out her immune system, which makes her highly susceptible to illness. Barnes is joining public health officials in urging everyone to get the measles vaccine if they haven’t yet.

A second case of measles has been reported in Champaign-Urbana. Like the first case announced in January, this second case involves a member of the University of Illinois campus community.

On The 21st: SIU is launching an internal investigation into a researcher who injected patients with an unapproved herpes vaccine. Plus, we learn the history of a house in southern Illinois whose owner kidnapped free black men and women -- and sold them back into slavery in Kentucky. But first, we preview the State of the Union with Republican Rep. John Shimkus, and a representative who is boycotting the event, Democratic Rep. Jan Schakowsky. 

Public health officials want parents and students to be aware of a whooping cough outbreak in Champaign County.