Michaeleen Doucleff

Oh no. Not again.

Just when COVID surge in the U.S. has begun to decline, another coronavirus variant has immediately cropped up. This time in the U.K.

Known in the media as "delta-plus," this mutant is raising some concern because over the past few weeks, it's begun to spread in several parts of Britain. It now accounts for about 6% of all cases in the U.K.

Last week, a panel of scientists and doctors met to discuss the Pfizer booster vaccine. Specifically, the goal was to advise the Centers for Disease Control and Prevention about who needs a third shot.

The agency ultimately recommended anyone age 65 and over should get one as well as people who live in long-term care facilities or people ages 50 to 64, who have underlying health conditions.

But several panelists felt there was a more urgent matter at hand than Pfizer boosters.

For the past several weeks, Dr. Boghuma Titanji has been swamped with questions about COVID-19 vaccine boosters. Even the experts seem confused, she says.

"I'm even getting questions from my colleagues, who are doctors, asking me, 'What should I do?' " says the infectious disease specialist at Emory University.

Some scientists have called it "superhuman immunity" or "bulletproof." But immunologist Shane Crotty prefers "hybrid immunity."

"Overall, hybrid immunity to SARS-CoV-2 appears to be impressively potent," Crotty wrote in commentary in Science back in June.

No matter what you call it, this type of immunity offers much-needed good news in what seems like an endless array of bad news regarding COVID-19.

All around the world, there seem to be signs that immunity to SARS-CoV-2, the coronavirus that causes the disease COVID-19, doesn't last very long after you're vaccinated.

Israel is now having one of the world's worst COVID-19 surges about five months after vaccinating a majority of its population. And in the U.S., health officials are recommending a booster shot eight months after the original vaccine course.

Admitting this makes me feel like a bad mom, but it's the truth: I don't enjoy "kid-friendly" places. At birthday parties, zoos and play areas, I'm either completely bored or utterly overstimulated. The noise, the lights, the chaos! After an hour or two, I'd leave, say, the children's science museum exhausted, on edge and feeling like a small piece of my soul had died back at the snack bar after spending $10 on a slice of cheese pizza.

In a leaked report, the Centers for Disease Control and Prevention made a surprising claim about the delta variant of the coronavirus: It "is as transmissible as: - Chicken Pox," the agency wrote in a slideshow presentation leaked to The Washington Post on July 26.

Back in May, a group of scientists — many at the top of the virology field — shifted the debate about the origins of COVID-19. They published a letter in the journal Science saying the lab-leak theory needs to be taken more seriously by the scientific community.

Updated July 21, 2021 at 5:50 PM ET

After months of data collection, scientists agree: The delta variant is the most contagious version of the coronavirus worldwide. It spreads about two to three times faster than the original version of the virus, and it's currently dominating the outbreak in the United States, responsible for more than 80% of COVID cases.

Back in the fall, Michelle Shiota noticed she wasn't feeling like herself. Her mind felt trapped. "I don't know if you've ever worn a corset, but I had this very tight, straining feeling in my mind," she says. "My mind had shrunk."

Shiota is a psychologist at Arizona State University and an expert on emotions. When the COVID-19 crisis struck, she began working from home and doing one activity, over and over again, all day long.

When it comes to raising resilient children, Jeff Nelligan knows more than a thing or two.

He has three sons, dripping with hustle and composure. One of them is a senior at West Point, another graduated from the U.S. Naval Academy and the third from Williams College, where he played lacrosse. "I've raised three bad*****," Nelligan says bluntly (as he does often). "I hate to say it that way, but these kids have the ability to get over adversity, and that's resilience."

In the past 20 years, new coronaviruses have emerged from animals with remarkable regularity. In 2002, SARS-CoV jumped from civets into people. Ten years later, MERS emerged from camels. Then in 2019, SARS-CoV-2 began to spread around the world.

For many scientists, this pattern points to a disturbing trend: Coronavirus outbreaks aren't rare events and will likely occur every decade or so.

Now, scientists are reporting that they have discovered what may be the latest coronavirus to jump from animals into people. And it comes from a surprising source: dogs.

YouTube

The world is very worried about coronavirus variants.

Updated May 14, 2021 at 4:34 PM ET

Scientists in the U.K. now say that one of the variants from India, known as B.1.617.2, is highly contagious and likely more transmissible than the variant from the U.K., B.1.1.7.

Video by Xueying Chang, Kaz Fantone, Michaeleen Doucleff and Ben de la Cruz/NPR / YouTube

When will the pandemic end? How many more COVID-19 waves will the U.S. go through?

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