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Source: https://www.bmj.com/content/373/bmj.n1353
Covid-19: Researchers find higher than expected reinfections with P.1 variant among the Brazilian Amazon
BMJ 2021; 373 doi: https://doi.org/10.1136/bmj.n1353 (Published 25 May 2021) Cite this as: BMJ 2021;373:n1353
Luke Taylor
A study of blood donors in the city of Manaus has found that 1 in 6 of those infected with the coronavirus were reinfected with the P.1 variant.1 The results were higher than researchers anticipated and those found in studies of reinfections conducted elsewhere.
The preprint, which has not been peer reviewed, was published by the Brazil-UK Center for Arbovirus Discovery, Diagnosis, Genomics, and Epidemiology (CADDE). It is the latest effort from researchers to understand why hospitals in Manaus—which is home to two million in the Brazilian Amazon—collapsed under the weight of coronavirus infections in January 2021 despite antibody levels suggesting that around three quarters of the population had been infected in the first wave.2
The study suggests that reinfections with P.1 are more common than researchers had previously thought and confirms the theory that herd immunity through natural infection is impossible, said Ester Sabino, the study’s lead author and associate professor at the Institute of Tropical Medicine at the University of São Paulo School of Medicine...
Covid-19: Researchers find higher than expected reinfections with P.1 variant among the Brazilian Amazon
BMJ 2021; 373 doi: https://doi.org/10.1136/bmj.n1353 (Published 25 May 2021) Cite this as: BMJ 2021;373:n1353
Luke Taylor
A study of blood donors in the city of Manaus has found that 1 in 6 of those infected with the coronavirus were reinfected with the P.1 variant.1 The results were higher than researchers anticipated and those found in studies of reinfections conducted elsewhere.
The preprint, which has not been peer reviewed, was published by the Brazil-UK Center for Arbovirus Discovery, Diagnosis, Genomics, and Epidemiology (CADDE). It is the latest effort from researchers to understand why hospitals in Manaus—which is home to two million in the Brazilian Amazon—collapsed under the weight of coronavirus infections in January 2021 despite antibody levels suggesting that around three quarters of the population had been infected in the first wave.2
The study suggests that reinfections with P.1 are more common than researchers had previously thought and confirms the theory that herd immunity through natural infection is impossible, said Ester Sabino, the study’s lead author and associate professor at the Institute of Tropical Medicine at the University of São Paulo School of Medicine...