As COVID cases continue to rise in Illinois and in the U.S., five Illinois counties are now experiencing medium risk levels for the virus, according to the U.S. Centers for Disease Control and Prevention.

As of Friday, Lake, DuPage, Champaign, McLean and Logan counties are all listed under the CDC's "medium" transmission risk level, the second-highest level on the CDC's scale. The designation means elderly or immunocompromised individuals are urged to wear masks in public indoor spaces.

Last week, four counties were at the medium community level. Lake County marks the second Chicago-area county to rise to the medium level so far this month.

The rest of Illinois, including Cook County and Chicago, remained at a low level.

https://www.nbcchicago.com/news/coronavirus/5-illinois-counties-now-in-medium-transmission-risk-for-covid-cdc/2820133/