Dr. Jeffrey Kopin on new CDC mask guidelines and Lollapalooza’s possible effect on COVID-19 numbers

John Landecker

BERLIN, GERMANY – SEPTEMBER 08: The crowd is seen during Lollapalooza Berlin 2018 at Olympiagelaende on September 8, 2018 in Berlin, Germany. (Photo by Sebastian Reuter/Getty Images)

Dr. Jeffrey Kopin, chief medical officer for Northwestern Medicine Lake Forest Hospital, joins John Landecker to discuss new CDC mask guidelines for the vaccinated and what Lollapalooza weekend may do to already rising infection rates.

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