Can you capture the omicron COVID-19 variant twice?
Can you capture the omicron COVID-19 variant twice?

Can you capture the omicron COVID-19 variant twice?

(NEXSTAR) – With the advent of The BA.2 variant of COVID-19a subvariant of omicron, ie also called stealth omicronare people who caught the virus in the last wave susceptible again?

Early research indicates that it is not likely that the subvariant will reinfect most people who have just caught omicron in this recent wave of cases, but it is possible.

Get Hawaii’s latest morning news delivered to your inbox, sign up News 2 You

ONE study of 2 million people in Denmark performed between November and February found 187 cases of re-infection. Of these 187 cases, 47 individuals had the BA.1 variant and then captured the BA.2 variant.

According to Healthline, were the majority of the subjects in the study who captured both omicron subvariants, juveniles and unvaccinated. They did not have serious cases.

The study has not yet been peer-reviewed.

Eric Feigl-Ding, an epidemiologist and former Harvard researcher, raised a warning flag on Twitter in February, citing other early studies that showed omicron’s protection against re-infection does not last long.

“Our results suggest that Omicron-induced immunity may not be sufficient to prevent infection from another, more pathogenic variant, should it emerge in the future,” he tweeted, quoting. examination.

It may seem counterintuitive, but people who only had a mild case of omicron the first time may also be more likely to get it again.

“If you had a mild infection, did not get a particularly good immune response, and you are exposed again with a large dose of the virus, it is certainly possible,” Dr. Stanley Weiss, a professor at Rutgers New Jersey Medical School, told Yahoo.

But because there is such a great similarity between the two sub-variants of omicron, many people infected in the recent winter wave can be protected in the short term.

“I think [reinfection] is unlikely because there is so much in common similarity [between the two types] that the minor differences are probably not enough to allow it to evade immunity to omicron, ”said Dr. Daniel Kuritzkes, head of Brigham and Women’s Hospital’s ward for infectious diseases, in an interview with WBTS last month.

As with other variants, any extra protection you get from a recent omicron infection also decreases over time. About two-thirds of those infected with omicron in the UK, people who had caught the alpha or delta variant in previous COVID waves were found by a study by Imperial College London.

“I suspect over time, yes, you can probably become re-infected. But we do not have that data yet because omicron has only been around since October / November,” said John Hopkins Senior Scholar, Dr. Amesh Adalja, KHOU.

Protection against the COVID vaccines is more reliable, says the Centers for Disease Control and Prevention. A fully vaccinated person who had a breakthrough infection is best protected against future infectionfound a recent CDC study.

Vaccinated and boosted people were too far less likely to have severe symptoms associated with an omicron infection.

Get more news about coronavirus: COVID vaccines, boosters and information on Safe Travels

The BA.2 subvariant accounts for about 23% of COVID-19 cases in the United States, according to The CDC’s last estimate. Epidemiologists point out that its presence has doubled around every week.


Leave a Reply

Your email address will not be published.