Lollapalooza, the famed music festival that took place in late July in Chicago, is suspected to have led to at least 203 COVID-19 cases reported this week. 

“Nothing unexpected here,” Department of Public Health Commissioner Dr. Allison Arwady said Thursday at a news conference. 

“No sign of a ‘super spreader event’ But clearly with hundreds of thousands of people attending Lollapalooza we would expect to see some cases.”

The music festival lasted four days and attracted around 385,000 people to Grant Park in downtown Chicago.

There were questions as to whether the event should still be held in 2021 after it was canceled last year due to the pandemic. Mayor Lori Lightfoot backed the decision to allow the event to take place amid some safety protocols in place.

To get inside the festival, it was required to show proof of vaccination or a recent negative COVID-19 test. City officials attested that 90% of the festival-goers were vaccinated. 

Videos and pictures captured concertgoers without masks in crowded conditions.

City officials say 138 of the cases were Illinois residents from outside Chicago, 58 were from the city and seven were from out of the state. 

Eighty percent of those who tested positive were under 30.

Thirteen of the positive cases said they tested positive on or after the day their symptoms began, meaning they could have arrived already infected, Arwady said.

Although she insists, “We would have seen a surge if we were going to see a surge at this point.”