COVID-19 Reinfections: Since the beginning of the corona epidemic, we know that the corona virus can infect a person again. The case of a 33-year-old man from Hong Kong being infected is one of the earliest cases of re-infection. He was first infected on 26 March 2020. He was re-infected 142 days later with a genetically different virus. According to Paul Hunter, University of East Anglia, reports of re-infection have become common, especially after the spread of Omicron variants.
Preliminary studies from South Africa suggest that the risk of re-infection increased rapidly and substantially after the introduction of the new variant. This study has not yet been published and has to be independently reviewed by scientists. Why are infections increasing again? The simple answer is because our immunity is often not enough to prevent infection.
Re-infection strengthens the immune system?
The risk of re-infection with the corona may be due to the presence of a new variant, such as Omicron, because the immune system cannot accurately detect it due to a change in its form, which means that the virus bypasses the previous immunity, or it may be because This could be because immunity has decreased since the last time we were infected or when we were vaccinated. We know this is a special issue with COVID immunity. That’s why a booster dose of the vaccine is needed. Coronavirus generally always enters the human body through the nose and throat. The immunity in these areas is relatively low compared to systemic immunity throughout the body. How common is re-infection? Britain has recently started publishing data on infections again on its Kovid-19 dashboard. In this, a person is classified as a re-infected patient, who is found to be re-infected after more than 90 days.
Omicron increased the risk of infection
As of 6 February 2022, more than 14.5 million people were infected in England and about 620,000 of these people were re-infected. More than 50 percent of the cases of re-infection have come from December 1, 2021. This fact again states that the risk of re-infection with Omicron is significantly increased. But are the symptoms of the disease mild during re-infection? Symptoms during primary infection in vaccinated people are usually less severe than in non-vaccinated people.
This is why the rate of hospitalization between vaccinations is low. It is therefore reasonable to assume that re-infection should generally be less severe than a primary infection, since a person who is re-infected may have The person will have some immunity already existing due to their primary infection.
boost immunity from re-infection
Along with this, many people would have been vaccinated in the middle of their getting infected, which would have increased their immunity level further. We know that the severity of COVID-19 varies from variant to variant. Do re-infections strengthen immunity? The answer is ‘yes’ to some extent. past infection omicron Provides the same protection as two doses of the vaccine in case of infection. It is therefore reasonable to assume that re-infection would also promote immunity, but such immunity would still not be 100% protective. Evidence of people getting infected many times is also coming out. This should not be surprising, as we know that coronaviruses affecting humans can cause re-infection every few years.
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