The declarations Anna popova, director of the Russian Federal Service for the Supervision of Consumer Protection and Welfare (Rospotrebnadzor), have generated an earthquake in the scientific community.
The head of the entity affirmed, this Tuesday, September 15, 2020, that a person who has suffered from COVID-19 could continue to transmit the SARS-CoV-2 coronavirus up to 90 days after infection, something that could happen even when symptoms no longer appear.
“Our observations currently (indicate) up to 48 days, while abroad there are (observations) up to 90 days,” explained Popova during a session of the executive committee of the Russian Academy of Sciences, as quoted by local media.
«A person who no longer presents symptoms, who feels perfectly and has a blood with all the perfect indicators, however emits the virus from the nose«He added.
However, Popova did not specify what the chances are that that person can infect others.
In parallel, he indicated that today data on coronavirus are not enough and its pathogenesis (the mechanism of the origin and evolution of the disease), its impact mechanism, its long-term consequences, the duration of immunity or the level of immunity that guarantees protection to the virus are not yet known.
He also highlighted that the Russian State Center for Research in Virology and Biotechnology Véktor has not registered significant mutations of the coronavirus after studying 422 samples.
“Any change in the coronavirus can lead to the loss of control over this virus,” said Popova.
“Today, Véktor has 422 isolated whole genome samples, some of them represented in an international database. Till the date, no significant changes have been found in the genome“, has underlined.
According to the head of Rospotrebnadzor, experts have not found mutations that “may lead to changes in the epidemiological potential” of the coronavirus.