What Doctors Want You to Know About the Latest COVID-19 Variant, LB.1 – Prevention Magazine

While government data that tracks COVID-19 isnt as robust as it used to be, its clear that were in the middle of a summer wave. Contributing to the uptick is the newest COVID variant, LB.1.

Right now, emergency room visits due to the virus are up more than 23% than they were during the previous week and hospitalizations are up more than 13%, according to data from the Centers for Disease Control and Prevention (CDC).

The latest variant hasnt gotten a lot of attention so far, but its been steadily causing issues in the U.S. since late spring.

Meet the experts: Thomas Russo, M.D., professor and chief of infectious disease at the University at Buffalo in New York, Amesh A. Adalja, M.D., infectious disease expert and senior scholar at the Johns Hopkins Center for Health Security.

So, what is LB.1 and does it have unique symptoms? Infectious disease experts break it down.

LB.1 is the third most common COVID-19 variant in the U.S. right now, per CDC data. Its a descendant of JN.1, along with common variants KP.2 and KP.3, according to the Infectious Diseases Society of America (IDSA).

LB.1 is another Omicron variant, says Amesh A. Adalja, M.D., infectious disease expert and senior scholar at the Johns Hopkins Center for Health Security. Its also a FLiRT variant, along with KP.2, KP.3, and KP.1.1, he points out.

Its a little bit different from KP.2 and KP.3 in that it has a deletion in the spike protein, says Thomas Russo, M.D., professor and chief of infectious disease at the University at Buffalo in New York. (In case youre not familiar with it, the spike protein is what SARS-CoV-2, the virus that causes COVID-19, uses to attach itself to your cells and infect you.)

LB.1 first emerged as a blip on the CDCs radar back in April but has become more dominant over the past few weeks.

Its hard to say at this point. There is some lab data to suggest it may be more infectious than KP.2 and perhaps KP.3, Dr. Russo says. It appears to be more immune-evasive.

But Dr. Adalja points out that there seem to be fewer COVID-19 cases caused by LB.1 in the latest CDC surveillance data released than in the previous round of data.

It seems to be more common in the East and Southeast, Dr. Russo says.

There is chatter online about people having a really intense sore throat with COVID-19 lately, and its possible thats due to LB.1 (although tricky to know for sure). But doctors say that COVID-19 symptoms are largely the same as theyve been over the past year or two.

Theres not enough data to report any differences in symptoms, Dr. Adalja says. Each variant has certain symptoms anecdotally attributed to it, but they are mostly all still part of the same spectrum of illness of all versions of the virus.

According to the CDC, those symptoms may include:

It depends on how you look at it. Dr. Russo notes that the COVID-19 vaccine is imperfect at keeping people from getting the virus. However, it can help lower the risk youll end up getting seriously ill, being hospitalized, and dying from the virus.

Dr. Adalja agrees. The current vaccine is not very effective at durable protection against infectionand that has been the case for some timewith the current slew of variants, though it is protective against severe disease, he said.

Thats why Dr. Russo still recommends getting the updated COVID-19 vaccine, if you havent already. It will afford more protection than not being vaccinated, he says.

The best way to lower your risk of getting LB.1 is the same as its always been, although the steps to take really depend on your risk tolerance, Dr. Adalja says.

High-risk individuals should keep up to date with vaccinations and the extremely high-risk immunocompromised individuals should discuss the monoclonal antibody Pemgarda with their physician, he says.

If youre high risk for getting sickmeaning youre pregnant, an older adult, immunocompromised, or have certain underlying health conditionsits also a good idea to mask up in crowded indoor settings, like when you go to the grocery store, Dr. Russo says. Youll also want to avoid indoor settings where you cant wear a mask, like restaurants, until were on the back side of this wave, he adds.

Dr. Rusos says its likely that the summer wave wont die down until the end of the season. Soon after, a new COVID-19 vaccine thats better targeted to the FLiRT variants like LB.1 should be available.

Korin Miller is a freelance writer specializing in general wellness, sexual health and relationships, and lifestyle trends, with work appearing in Mens Health, Womens Health, Self, Glamour, and more. She has a masters degree from American University, lives by the beach, and hopes to own a teacup pig and taco truck one day.

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What Doctors Want You to Know About the Latest COVID-19 Variant, LB.1 - Prevention Magazine