Delta variant: Hospitalizations are rising sharply, driven by unvaccinated Americans

Surges of confirmed coronavirus cases and hospitalizations in several U.S. states are causing health professionals to sound alarms about the continued spread of the highly contagious Delta variant, the transmission of which is being primarily driven by unvaccinated individuals.

“Unfortunately, a lot of hospitals nationally are seeing more and more cases getting hospitalized,” Dr. Payal Patel, an infectious diseases physician at the University of Michigan, said on Yahoo Finance Live (video above). “A lot of these folks — in fact, probably, more than 90% of them — have not been vaccinated.”

The 7-day average of new reported cases hit 127,470 on Monday, according to New York Times data. The 7-day average for hospitalizations nationally from COVID-19, the disease caused by coronavirus, has doubled. An overwhelming majority of those casualties were among unvaccinated patients. (Generally, rises in COVID-19 hospitalizations are a followed by rises in COVID-19 deaths.)

About 58.7% of the U.S. population ages 12 and up are fully vaccinated, according to CDC data, and about 68.8% have received at least one dose. The numbers are lower when considering children under 12.

According to the CDC, those who are fully vaccinated can still transmit the Delta variant to others despite all three vaccines being very effective in preventing cases of serious illness and death. At the same time, transmission among unvaccinated populations seems to occur at a much higher rate.

“You have to be flexible as things change, and we’ve seen that the Delta variant has really changed things for us,” Patel said. “In the science community, as well as the legislative community, it’s really important to be flexible as things change. Right now, masks are a temporary measure. They’re not going to cure the pandemic. It’s really vaccines that are going to get us there.”

Dr. Anthony Fauci, director of the National Institute for Allergy and Infectious Diseases (NIAID), recently warned that allowing the virus to spread unchecked in some areas of the world will lead to more variants emerging and also noted that vaccinations were the best defense against widespread transmission.

"It is very important to get as many people vaccinated as we possibly can," he told ABC News.

'The Delta variant has really changed things for us'

Many hospitals in Southern states are being overwhelmed with COVID patients, mirroring troubles that other parts of the country experienced earlier in the pandemic.

Louisiana just set a new record for COVID-related hospitalizations. In Houston, United Memorial Medical Center ran out of beds, including pediatric beds. This led to an 11-month-old girl with COVID-19 being airlifted to a Texas hospital 150 miles away in order to receive care.