It is possible to catch Covid again 20 days after testing positive

the variant Ômicron provoked, at the beginning of this year, the fourth wave of Covid-19 Nope Holy Spirit, with the highest rolling average of confirmed cases of the disease since the start of the pandemic. Now, the state is once again experiencing growth in infection records, this time stemming from Sars-Cov-2 subvariants. Changes in the virus that make it even more contagious, combined with the unvaccinated group, could be the cause of a new phenomenon in this pandemic: cases of reinfection less than a month apart.

A study conducted in Denmark, according to a report by The globeindicates that, with Ômicron and its sub-variants, the reinfection can occur in just 20 days. The researchers reached this conclusion after analyzing more than 1.8 million people infected during a period of high circulation of the strain in Europe, between November 2021 and February 2022. 30 years old, unvaccinated.

Infectious disease specialist Lauro Ferreira Pinto says reinfection within an interval of less than 30 days is not common, but there is an indication of vaccine leakage, given that the immunizers currently approved for use were developed when the first Sars-Cov- strains were still in circulation two. Not to mention people who haven’t completed the vaccination schedule or even taken the first dose.

“The Ômicron has many sub-variants. The ones circulating the most now are B4 and B5. One of the characteristics is to be able to be reinfected by the Ômicron. Less than a month is rare, but those who had it in January, February, can have it again. And that is vaccine avoidance, yes. Vaccines protect against severe cases, but not against re-infection. You will have a milder infection. Vaccination will continue to be the best way to prevent any serious cases,” he points out.

Professor of Federal University of Espírito Santo (Ufes), epidemiologist Ethel Maciel recalls that at the start of the pandemic, some were infected with Sars-Cov-2, still without mutations, and then picked up a variant. This image repeated itself, always with a person infected first by one strain and then reinfected by another variant, and at an ever faster rate, passing through Alpha, Beta, Gamma, Delta. Now what happens is from Ômicron to its subtypes.

“Before, the interval was three, four months. It’s much shorter now, around days, weeks. And that’s because of the mutations, it (the virus) manages to escape a lot more. And that also brings concern in this scenario of increased transmission that we are currently experiencing, in which Brazil is again in a emergency situationand with the long Covid”, he underlines.

Luiz Carlos Reblin, Undersecretary of State for Health Surveillance, points out that these episodes of reinfection serve, at least, to definitively overturn the thesis of those who defend that contracting Sars-Cov-2 offers the necessary protection, with the popularly called herd immunity. “But the virus does not respect the prior immunity of the disease itself,” he notes.

The three experts maintain that it is the vaccine that will prevent the most serious cases, which can progress to death. “With broad vaccination coverage, we have a greater degree of protection,” concludes Reblin.


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