U.S. Covid cases dip from latest peak, but delta still rising in some

Covid-19 case counts in the U.S. are showing signs of easing off their latest highs but remain elevated as the country heads into the fall season and colder weather.

The seven-day average of daily Covid cases is about 144,300 as of Sept. 12, according to data compiled by Johns Hopkins University. That figure is down 12% over the past week and 14% from the most-recent peak in case counts on Sept. 1, when the country was reporting an average of roughly 167,600 cases per day. 

“This is good news,” said Dr. Arturo Casadevall, chair of molecular microbiology and immunology at the Johns Hopkins Bloomberg School of Public Health. “It could represent that we have reached a peak and we are now on the way down.”

The U.S. has seen several swings in daily Covid cases since the pandemic started. Average daily cases topped out at about 32,000 in April 2020 before subsiding. They then surged and peaked at 67,000 by July 2020. The pace of new cases fell after Labor Day 2020 before surging to a record high of 251,000 cases per day in January. There was also a steep drop-off after the holidays, followed with another jump to about 71,000 cases per day this past April.

“Every epidemic goes through cycles and eventually wanes, and that happens when you have enough people who are resistant,” Casadevall said, explaining that the combination of vaccinations and high number of infections this summer could be helping the country turn a corner.

However, he cautioned that the virus has been unpredictable. “I would just be careful declaring anything except some degree of optimism with the fact that the numbers are going down.”

There are also some promising signs in Covid hospitalization and death tallies. The data on these tends to lag case counts by a couple weeks or more, as it takes time for people to become infected with the virus and then get sick enough to need urgent care.

About 100,600 Americans are currently hospitalized with Covid, according to a seven-day average of data from the Department of Health and Human Services. That’s down 2% from a week ago.

Though current hospitalizations had not been over 100,000 since January before crossing that level again in late August, the pace of new Covid patients entering the hospital is now on the decline. Centers for Disease Control and Prevention data shows a 6.8% drop in the seven-day average of hospital admissions for the week ending Sept. 10 compared to the week prior. 

The daily death toll, though, is still on the rise. The country is reporting an average of more than 1,600 Covid deaths per day over the past week, according to Hopkins data. That’s a six-month high. Daily deaths are up 4% over the past week, however, a more modest…