Covid-19 Reinfection May Be More Aggressive Even Without Variants, Study Says

Covid-19 Reinfection May Be More Aggressive Even Without Variants, Study Says
Covid-19 Reinfection May Be More Aggressive Even Without Variants, Study Says

Study warns that asymptomatic people and those with mild or moderate symptoms of Covid-19 are at risk of reinfection due to the disease, even if they have not been contaminated by one of the variants of concern, such as the Amazon P1, in addition to the strains in the United Kingdom and South Africa.

The second contagion can provoke a more intense inflammatory body response and with stronger symptoms, points out a pre-published study, that is, not yet peer-reviewed, by researchers from the Oswaldo Cruz Foundation (Fiocruz), Federal University of Rio de Janeiro ( UFRJ) and Instituto D’Or de Ensino e Pesquisa (Idor).

Photo: Itamar Crispim / Agência Brasil

In the study, it was used as an example the reinfections that occurred in Rio de Janeiro that present patients who developed more acute symptoms in relation to the first infection, even though they were not contaminated by the new variants.

According to one of the researchers responsible for the study that works at Fiocruz and Idor, Fernando Bozza, the risk of reinfection in relation to the new variants is greater, but the focus of the study, which did not address these strains, was the cases of infection by non-variant strains, something new until then.

The study’s response is worrying, since it does away with the idea that reinfection only occurs due to new variants such as P.1, B.1.1.9 (from the United Kingdom) and B.1351 (from South Africa) South).

According to Bozza, the data further reinforces the need to maintain Covid’s containment measures, such as social isolation, reduced circulation of people, use of masks and hygiene.

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