CORONA VARIANT IN BRAZIL INFECTED MANY WHO ALREADY RECOVERED FROM COVID 19

  • 03/03/2021

A coronavirus variant of concern (VOC) first detected in Brazil may be up to 2.2 times more transmissible and cause re-infection in people already recovered from Covid-19, a new modelling study has suggested. Researchers at the University of São Paulo, in collaboration with Imperial College London and the University of Oxford, found that a second wave of infection in Manaus, a city thought to have a high level of existing immunity from the first wave, was associated with the emergence of the new P.1 variant.

Using statistical analysis of genome sequencing data, the researchers found that the P.1 lineage, which has been identified in more than 20 countries worldwide, has likely been circulating in Manaus since early November 2020. The study has not yet been peer-reviewed or published in a medical journal and available as a preprint.

They have estimated that the variant evades 25-61 per cent of protective immunity arising from infection with previously circulating variants. This means 25 to 61 out of 100 people previously infected with non-VOCs that circulated in Manaus could be re-infected if they are exposed to P.1. The study further estimated that the variant is associated with a 1.1-1.8 times increased risk of mortality compared to previous variants circulating in the Amazonian region.

Related News

Israel PM reaffirms his plan to attack Rafah with ground for ...
  • 12/03/2024
Pakistan ex-PM Imran Khan jailed for 10 years
  • 30/01/2024
ICJ orders Israel to stop genocide acts in Gaza
  • 26/01/2024
Iran bomb blast: More than 100 killed
  • 03/01/2024
Russia-Ukraine war: 14 killed in Russia’s Belgorod in shelli ...
  • 30/12/2023
Russia-Ukraine war: Biggest aerial attack on Ukraine cities
  • 30/12/2023
South Africa launches genocide case against Israel at UN Cou ...
  • 30/12/2023
Pakistan PM declares prohibition on New Year festivities
  • 30/12/2023
Health Ministry of Gaza: 20,057 people dead
  • 22/12/2023
Gaza Health Ministry: Over 15,500 killed in Gaza
  • 09/12/2023
14 dead in a fire at university dormitory in Iraq
  • 08/12/2023
Mount Merapi eruption: 11 hikers dead
  • 04/12/2023