By 2020, coronavirus infections didn’t seem to happen very often or even very often at all. But in 2021 and so far in 2022, it looks like these infections are already common enough to buy. We could almost start looking for the person who has the most reinfections in the world, according to the Guinness Book of World Records.

Whether you or someone you know has had the virus more than once, it is a fact that vaccination, even with the whole plan, is not enough to stop the virus from spreading. In fact, it is helping to make the disease much worse in a big way. lighter. Too many experts have already said that it is as bad as the flu because vaccines protect against it.

A note from Akshay Sal, MD, and Sara G. Miller at NBC News says that the United States does not track Covid reinfections, but that in the United Kingdom, researchers found that the risk of reinfection was 8 times higher during the wave of the Omicron variant than during the Delta wave.

This virus hasn’t shown any signs of wanting to go away yet, and experts say that there are already people who have had three to five infections or more. These infections didn’t happen over the course of the pandemic, though; in some cases, they happened within the same year. In reality, the most recent versions of the coronavirus, like Omicron and its subtypes, are able to get around the immunity that vaccines give and the natural immunity that people get from having been infected before. Even though the Centers for Disease Control and Prevention (CDC) confirms that reinfections happen, they are still doing a lot of research to find out how they happen, how often they happen, who is more likely to get them, how bad they are compared to the first infection, and how likely they are to spread the virus to other people. This is because the fact that many people have already been vaccinated changes all of these factors.

The incidence of reinfection by Sars-CoV-2

In 2020, doctors wrote about the first case of a person getting the coronavirus again. A 33-year-old man from Hong Kong had two different strains of Sars-CoV-2 in each episode. During the second infection, he didn’t have any symptoms. Later, one of the largest UK studies found that 304 of the 36,509 people who had gotten better had re-infections. This is a rate of almost 1%. Many countries have reported cases of reinfections because the virus keeps changing. So far, it looks like the Omicron subvariants (BA.4 and BA.5) are the ones that pose the greatest risk of reinfection. We would expect to see more cases of these in Latin America because new and repeated infections are now the majority in the U.S. and, it seems, the rest of the world.

In the Chinese Medical Journal, Mao Yinjun wrote an article that tried to figure out how often the coronavirus infects people again and if being infected once makes you less likely to get it again. They talk about the two main reasons why these things can occur:

Natural immunity wanes over time or immunity gained naturally fails, allowing the same virus strain to infect the person again, and New strains of the virus are not affected by natural immunity that was built up in the past.

This research found that the rate of reinfections was not very high. They say this is because it was hard to find the virus in the first wave because there weren’t any diagnostic tests, and secondly, reinfections could have been reported as false positives in the first or second test, which would have overestimated the rate of the same, or what many people thought were reinfections could have just been the first infection with a long-lasting picture at that time.

Is it possible to catch the virus again?

On the other hand, a recent review by Xiangyng Ren and his team from the Zhongnan Hospital of Wuhan University in China, which was published in Global Health Research and Policy, looked at the types of patients who were re-infected and tried to figure out what might have caused the infections. infection over and over. This study is interesting because it looks into some of the things you may have wondered about reinfections. We talk about some of what they said:

What are the signs that a patient is going to get sick?

Still, there is no clear answer to this kind of question. About half of the 118 people who got HIV again and were part of 50 studies were men, and the other half were women. Their ages ranged from 16 to 92, and 25 of them had at least one other disease, like high blood pressure, kidney failure, or asthma. Patients often showed symptoms after re-infection.

What are the most common signs of a reinfection?

According to this study, most of the people who got infected again had symptoms, and only a small number of people didn’t have any symptoms for any of their infections. The first infection usually caused coughing, fever, headaches, diarrhea, and sore throats. Most of them already had these other 5 symptoms when they got sick again: cough, fever, headache, dyspnea (difficulty breathing), and tiredness.

How long did it take between the first infection and the second one?

In this study, the least amount of time that was known was 19 days, and the most time that was known was 293 days.

Does the presence of other diseases affect how often someone gets sick again?

They found that 64 of the patients had other conditions, and at least 10 had two or more. High blood pressure and obesity were the most common of these conditions.

Can you get sick again if you’ve been vaccinated?

Of course. At least one of the people in this study got sick again 10 days after their first dose, and another got sick 13 days after their first dose. Even if you are fully vaccinated (including with the new boosters), which have a success rate between 62% and 95%, you can still get infected again. Even if you have been infected at some point since the pandemic started, you are not yet safe.

Are the symptoms getting worse or less bad?

At least, this review doesn’t show a trend in how badlyCovid-19 reinfected patients do. He talks about people who get better, people who die, people who are still in the hospital, and people who have been sent home. In reality, it’s very hard to answer this question because everyone gets infected in different ways, depending on their age, diseases they already have, complications from the first infection, and how bad the first infection was.

With preliminary research called “Duration of Immune Protection of Sars-CoV-2 natural infection against reinfection in Qatar,” a group in Qatar came to a simple but clear conclusion: “protection of natural infection against reinfection fades and can decrease in a few years; Omicron’s invasion speeds this decline.” But protection against severe re-infection (severe symptoms) is “strong” for more than 14 months after the first infection. This is true for all variants. In a nutshell, they say that if you get infected again, you probably won’t get sick very badly.

How many times can you get sick from the same thing?

And what worries you the most is something that neither scientists nor experts know, which is the answer to our first question. There is no way to know how many times a person can get sick again. A group of researchers led by Heba N. Altarawneh of Weil Cornell Medicine Qatar, Cornell University, Doha, Qatar, did a preliminary study that hasn’t been published yet. They found that if someone was infected with Omicron within the last 6 months, it protects them from getting infected with the BA.4 and BA.5 subvariants 80% of the time. However, if the first infection was with a type Alpha, Beta, or Delta, they

But it’s clear that reinfections happen and that they are not limited to a single strain. Because of this, even if you have been vaccinated or have already been infected, you still need to keep taking all the steps you already know to stop the spread of the virus.

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