04/29/2021 1:49 PM
Clarín.com
Society
Updated 04/29/2021 1:49 PM
The coronavirus changes, the pandemic changes.
This is what Argentine specialists and foreigners also repeat.
And that was reflected in the latest report published by the PAIS Project Consortium, which investigates the circulation of the different variants in Argentina.
According to the report released this Thursday, it was observed that in the City of Buenos Aires the variants 501Y.V1 (United Kingdom) reached a frequency value of 27.1%, while the 501Y.V3 (Manaus) reached 31.3 % in the second week of April.
In addition, it was verified that the E484K mutation (compatible with variant P.2, Rio de Janeiro, although its confirmation by whole genome sequencing remains) was detected in 6.3% of the cases, while the L452Q (compatible with the C.37 lineage, recently described in Chile and Peru, informally called "Andean variant") was detected in 33.3% of the cases.
"The circulation of this lineage in CABA has been confirmed by the complete genome sequencing of 20 samples corresponding to the previous epidemiological weeks," says the preliminary report.
Similar conditions were observed when crossing the General Paz, with a predominance of the Manaus variant (26.9%) over the British one (11.5%), in both cases without connection with people who arrived from abroad.
In addition, infections with the L452Q mutation of interest showed an increase from week seven to 57.7% of cases at week 15.
The area that suffers the most from the Manaus strain is Greater La Plata, where it reached 79.4% of the cases detected during week 15 (second April).
The advance of the Brazilian variant
This study comes a day after the journal Science reported in a publication that the Brazilian variant of the coronavirus is between 1.7 and 2.4 times more transmissible and would even be able to evade the immunity obtained by infection with other strains.
In Brazil, two variants of Covid-19 have been detected
, that of Manaus and that of Rio de Janeiro, although the one that worries the most is the first, which emerged at the end of 2020 in the capital of the state of Amazonas and which already has high levels. circulation in the country.
Researchers at the University of Copenhagen analyzed the variant with an epidemiological model, which indicates that
"it is likely"
that it is more transmissible than previous coronavirus strains and that "it may elude the immunity acquired by infection with other strains." according to lead author Samir Bhatt.
Although the group stressed that caution is necessary when trying to extrapolate these results, they did point out that these "underscore the fact that greater surveillance of infections and different strains of the virus is necessary in many countries to bring the pandemic fully under control. ".
JPE
Look also
Brazil started manufacturing its first coronavirus vaccine
Coronavirus: they detect that the Manaus variant is up to 2.4 times more transmissible and evades previous immunity
