Experts unsure whether kids get sicker from delta
At Texas Children’s Hospital, there are more patients with COVID-19 right now than at any point in the pandemic. Tennessee is getting close to its all-time high of kids sick with COVID-19. And at Joe DiMaggio Children’s Hospital in Hollywood, Florida, the number of children needing treatment for COVID-19 jumped from 20 in June to 200 in July – and has topped 160 so far in August.
Delta is clearly more contagious than previous variants, and it’s tearing its way across the South, said Dr. James Versalovic, the Texas Children’s interim pediatrician-in-chief.
What’s not clear is whether kids are getting any sicker with delta than with other variants.
“Right now, it’s speculative,” he said. He said the children he’s seeing seem to have more fever and congestion than those treated during last summer’s and winter’s surges, he said. “We do think delta is maybe contributing to that.”
But it’s too soon to know whether they will have worse outcomes. “It is literally unfolding as we speak,” Versalovic said. “We’re going to be keeping a close eye on delta in children and adolescents.”
Others were less convinced that delta is any different from predecessors.
“I think kids are just being swept up in the firestorm raging in the South,” said Dr. Peter Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine in Houston.
“In low vaccination areas like here in the South, it’s so transmissible – the community transmission or force of infection is like nothing we’ve seen – so everyone who is unvaccinated is at high risk of getting sick,” he said.
Dr. Ashish Jha, dean of the Brown University School of Public Health, categorizes the likelihood that delta makes kids sicker a “maybe.”
“It’s not a slam dunk,” he said. Early studies looking at the alpha variant also indicated that it was likely more virulent than its predecessor, but it turned out not to be. “So we don’t want to overreact,” Jha said.
But arguably, if people carry a higher load of virus when infected with the delta variant – as they seem to – then the variant might also be more dangerous.
“The jury’s out on this,” Jha said. “We have to we have to get better data. But that may be contributing to what’s happening.”
Children under 12 are still not eligible for vaccination. Vaccine studies in kids were started later than in adults and older teens and are expected to be completed in the early fall.
It’s extremely difficult to show whether one variant is more virulent than another, said Dr. Rick Malley, an infectious disease specialist at Boston Children’s Hospital.
There are so many factors that affect the seriousness of an infection, he said, including the health of the child, the care they receive and whether those at highest risk have been vaccinated.
“My guess is delta is not particularly more virulent in children than others,” Malley said. But with so many adults infected, it stands to reason that more children and teens will catch it, too, he said.
That’s why the handful of public health experts USA TODAY spoke with said it’s crucial for everyone who can be vaccinated against COVID-19 to get the shots. The more the virus can be slowed down, the fewer children will catch it, the experts said.