Ralph Wheeler, a DeKalb resident and chemistry professor at Northern Illinois University, advocates for mandated mask wearing when school resumes in the fall. Wheeler, who has a child entering kindergarten next year, was speaking during public comment at the DeKalb School District 428 school board meeting at district offices Tuesday July 20, 2021. (Mark Busch - mbusch@shawmedia.com/Mark Busch - mbusch@shawmedia.com)
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