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Stephen Colbert, host ofThe late show, walks away once again from the ed Sullivan Theater scene as he recovers a secondBout with Covid-19. The recordings are canceled "until further notice", according to the Twitter account of the CBS program, whichnoted on Monday This Colbert "will be isolated for a few additional days".

Colbert, who resumed live recordings of his program a week ago following the news of his initial diagnosis coche on April 21, said that he wasFully vaccinated and boosted, and although it is not clear if it is a recurrence of the virus or a new infection, his illness raises concerns concerning the question of reinfection and relapse codes.

Read the rest to discover what experts say about the possibility of repeating the infections wearing - and why some are concerned with a rare response to the new covid pill of Pfizer.

Read this then:Boosters will not protect you from omicron if you have done this, studies the results.

In April, Colbert said he "felt good" afterTest positive for Covid. Less than two weeks later, on May 2, he started to record his program live in front of a studio audience. But Monday, CBS said via Twitter that "Stephen has symptoms in accordance with a Covid recurrence". Colbert quoted the tweet, adding: "Worse. Suite. Ever."

For those who have not been vaccinated, like Colbert, natural immunitydoes not last long. "The previous infection alone can offer very little long -term protection against subsequent infections", "Jeffrey Townsend, PHD, principal author ofA study on reinfection covers Published inThe Lancet microbeIn October 2021, said in a press release. "Reinfection can reasonably occur in three months or less."

But even for those who are fully vaccinated and boosted, questions persist over the duration of immunity. A study of centers for disease control and prevention (CDC) published in February 2022 revealed that the vaccineEfficiency is starting to decline After about four months.

However, none of this, however, hikes why Colbert would fall ill so shortly after seeming to recover from his first infection coded.

Read this then:The doctor makes a new major warning to all Americans, including vaccinated.

Last month, the CDC published a study that examinedA small patient sample—10 people - who was tested positive for the Omicron variant within 90 days of a confirmed infection with the Delta variant of Covid. Eight of these study subjects were under the age of 18 and only three had been vaccinated against Covid (one was fully vaccinated, while two had only received one dose).

The authors of the study warned that for various reasons, including a small sample size which included children who had "high levels of close contact in school age" and people who were not Vaccinated ", the results of this series of cases may not be generalizable to the American population." They also noted that the study was limited to the specific period of time when the Omicron exceeded the delta in the predominance.

"However, this study highlights the potential limits of immunity induced by infection against new variants," they concluded. In other words, having had an era coche once does not necessarily mean that you will not get the next variant that is coming.

But there is a reinfection coche, then there is a cocovid relapse - which means that you have never erased the initial infection. A relatively new weapon in the fight against Covid, the new pill of Pfizer, Paxlovid, is promising against a severe covid infection in adults, but a report by the Associated Press (AP) raises concerns as to some people can beRelated to a relapse After taking the medication.

"Doctors have started to report rare cases of patients whose symptoms return several days after finishing the regime of pills of five days of Paxlovid," they write, citing experts on the reasons for which they think it could being.

"The ability to clean the virus after removing it may be different from the Delta omicron, especially for vaccinated people," saidMichael Charness, MD, author of a 71 -year -old reportPaxlovid And experienced a softening of its symptoms, only to have a resurgence of the virus a few days later.

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We do not know if Colbert took Paxlovid or not to treat his initial disease. However, the AARP reports that the oral antiviral drug, which was released in December 2021 and was "initiallyin limited quantity, "is now" pour in tens of thousands of pharmacies in the United States "it iseasily available In New York, where Colbert filmed his program.

In addition to the concerns about Paxlovid and cases of COVVIR rebound, another potential concern is that the pfizer pill "has been tested and OK according to its performance against the DELTA version of the Coronavirus", writes the AP. And as the Charness pointed out, people can respond differently to the drug depending on the variant they are sick.

Although the U.S. Food & Drug Administration (FDA), which gave the green light to Paxlovid, said in a recent update for health care providers that 1 to 2% of people were doingseem to experience the cocovide rebound After taking Paxlovid, a positive test again after the drug initially seemed to destroy the infection, "it is not clear at this stage that this is linked to drug treatment".

More than two years in the cocovated pandemic, one thing is clear: the virus continues to change. In the wake of Delta, Omicron, the variant Ba.2, and now BA.2.12.1, many people are afraid of lowering their guard and hoping that the worst is behind us. Unfortunately, the variants will continue to emerge, and a very real concern is that the people who remain sick with COVID for a prolonged time could incubate new variants of the virus.AE0FCC31AE342FD3A1346EBB1F342FCB

It is "the worst scenario possible toDevelopment of mutations, "ImmunologistBruce Walker, MD, said toLos Angeles Times in January 2021.

Why? As theL.A. Times Explain, during a long illness, the virus makes millions of copies of itself. "Each copy is an opportunity to make random mistakes," they write. "As it turns new mutations, the virus can occur on those who help it withs drugs, escape the immune system and come back stronger."

In general, long infections occur inimmunocompromised individuals, but now there are new concerns that the "relapse", a small number of Paxlovid patients, could also lead to new dangerous variants. As the AP notes, if the "dose of paxlovid is not strong enough to completely remove the virus ... which could stimulate the changes resistant to medication".

Although it is not clear which exactly caused the relapse of Colbert, this reinforces the need for people to remain as protected as possible in accordance with the CDC guidelines. "If we keep the virus for a long time, we will give it more opportunities to thwart us", researcher to infectious diseaseTulio de Oliveira, Phd, said toL.A. Times.

Read this then:Dr Fauci warns that people vaccinated "must realize" this now.