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Indiana's BA.5 peak expected in mid-August, as reinfections account 1 in 5 newly reported cases

Epidemiologists say Indiana is a few weeks away from its BA.5 peak of COVID-19 cases. Nearly 1 in 5 new cases reported to the state is a reinfection, and the rate has steadily risen since May 1.

Dr. Scott Stienecker is an epidemiologist with the Society of Healthcare Epidemiology of America and is based in Fort Wayne. He said that data suggests a few things.

“We are clearly in a very significant rise in number of cases of COVID and the number of admissions of COVID,” Stienecker said. “And we’re expecting that to peak out somewhere around the second week of August.”

The state’s weekly average  for COVID-19 cases is now more than 2,000 cases per day. Because of the availability of at-home tests, Stienecker said that’s a small fraction of the current total.

“We’re undercounting by a factor of approximately 20,” Stienecker said. “When COVID first started … we could tell we were undercounting by a factor of about six.”

But he said hospitalizations provide a better picture of COVID-19 in Indiana. Those are at their highest point since late February, with COVID-19 accounting for more than 8 percent  of total hospitalizations.

Stienecker said that’s because there isn’t herd immunity against this variant.

“BA.5 is now the most infectious disease known to man, on the planet,” he said.

In a bit of good news: Deaths throughout the BA.5 wave  have remained very low.

READ MORE: Indiana crosses 1.8 million cases, as new confirmed positives steadily rise

In addition to being fully vaccinated and boosted, Stienecker said most Hoosiers can protect themselves by seeking early treatment if and when they test positive.

“If you’re like me: obese and male, and diabetic and hypertensive, I’m the high-risk kind of guy,” Stienecker said. “And if I’ve not been vaccinated or up-to-date on my boosters and I’ve not been receiving the kind of care that I need, I’m the one that’s going to end up in the hospital if I don’t get that great treatment up front.”

And he recommends specific masks for people who have to go into crowded places.

“The KF-94s protect me from you, even if you’re unmasked,” he said.

Stienecker said especially  as students return to school, it’s important to make sure kids are vaccinated – both to protect them from severe infection or long COVID, and to protect their older or immunocompromised relatives.

Contact Lauren at  lchapman@wfyi.org or follow her on Twitter at  @laurenechapman_

Lauren Chapman is the digital producer for our statewide collaboration, and is based at WFYI in Indianapolis. She previous has worked at a basketball magazine, a top 30 newspaper, and a commercial television station. Lauren is new to public media, but in addition to her job "making stuff on the internet," she is also a radio and television reporter. She's a proud Ball State University alumna and grew up on the west side of Indianapolis.