PHILADELPHIA (CBS) – Covid-19 cases are rising again as public health experts call the start of the predicted second wave. The spread of COVID-19 at political rallies is an area of ​​concern to doctors in the region.

“The number of corona virus infections in Philadelphia is growing rapidly, which marks the beginning of a fall / winter outbreak,” said Philadelphia Health Commissioner Thomas Farley.

Of the 45,000 COVID-19 cases in Philadelphia, Farley sounded the alarm and the community was most likely to be infected.

Dr. Megan Reed works at ER at Crosser-Chester Medical Center. Although not in Philadelphia, Raid says he also pays attention to numbers.

“We saw cases of COVID over the summer, but they weren’t sick when COVID first hit us,” Reed said. “I’m starting to see COVID positive, sick patients in the emergency room now.”

A study by Stanford University found that rallies for President Donald Trump between the end of June and the end of September resulted in more than 30,000 cases of the corona virus and more than 700 deaths.

The Philadelphia suburbs hosted presidential rallies. Its 20 election votes as both parties identified the suburbs as a key factor in unlocking Pennsylvania.

But the raid fears the area could be close to seeing a significant increase.

“I definitely hope to see this,” Raid said. “These events are super-spreader events, and now that COVID is on the rise, I think it will increase.”

The last integer was for the week ending October 24th. The city reports an average of 296 cases per day.

“This is the highest number of weekly cases since the first week of May,” Farley said. “Our data is incomplete, and beyond that the number will increase.”

Health officials also recommended this week the cancellation of family vacation meetings.

More from the CBS file:

In Philadelphia, Joe Biden works to increase black polling in the last days of the campaign

Domestic prevalence of COVID-19 is common, rapid, new CDC study finds

Activists asking Philadelphians to vote on 2 police reform questions on the ballot