According to a study published in the journal medRxiv, Manaus, a city in Brazil, would possibly have developed collective immunity against the virus due to the unprecedented rate of coronavirus infection.
The city in the domain of the Amazon rainforest has been devastated by the coronavirus outbreak.
He reports that the coronavirus peaked in Manaus in March and April and that the rate dropped in May and September.
Researchers found that at peak, 44% of the population was HIV positive, a figure that was adjusted to 52% after false negative cases.
He noted that seroprevalence decreased in July and August due to decreased antibodies.
The study estimated, after adjusting the data, that the final duration of the epidemic is 66% in terms of seroprevalence.
The study authors noted that government movements may have helped the pandemic, but “the abnormally high infection rate suggests that collective immunity played a vital role in determining the scale of the epidemic. “
However, health experts warned that a planned build-up of herd immunity can have damaging implications.
Read also: Covid collective immunity is unlikely, in practice: study
Meanwhile, Brazil is the third country most affected by the new coronavirus with more than 49. 5 cases of lakh as of September 24. The country also reported 1. 38 lakh deaths, the time in the world, according to the global meter dashboard.
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