Chicago's Cook County jail is the largest-known source of coronavirus infections in the U.S., the New York Times reports. The White House has identified Chicago's metro area as a risk for exponential growth of the virus.
Why it matters: Public health officials have warned this would be a particularly deadly week for America, even as New York began to see declining trends of hospitalizations and ICU admissions.
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COVID-19 is underscoring the connection between air pollution and dire outcomes from respiratory diseases.
Why it matters: Old-fashioned air pollution is almost certainly the single biggest environmental health threat, contributing to the deaths of some 7 million people a year according to the WHO, making it comparable to deaths from smoking.