The pathogen could be transmitted during that time even when the person has no symptoms.

The body of a person who has contracted covid-19 could continue to transmit the SARS-CoV-2 coronavirus for up to 90 days after infection, Anna Popova, director of the Russian Federal Service for the Supervision of Protection and Protection, warned on Tuesday. Consumer Welfare (Rospotrebnadzor).

The head of the entity also specified that the transmission of the pathogen could occur during that period even if the person no longer shows symptoms of the disease.

“Our observations currently [indicate] up to 48 days, while abroad there are [observations] up to 90 days,” Popova explained during a session of the executive committee of the Russian Academy of Sciences, as quoted by local media.

“A person who no longer has symptoms, who feels perfectly and has blood with all the perfect indicators, nevertheless emits the virus from the nose, ” she added.

However, Popova did not specify what the chances are that that person can infect others.

At the same time, he indicated that to date the data on the coronavirus are not sufficient and its pathogenesis (the mechanism of the origin and evolution of the disease), nor its impact mechanism, its long-term consequences, the duration of immunity, or the level of immunity that guarantees protection to the virus.

She also highlighted that the Russian State Center for Research in Virology and Biotechnology has not registered significant mutations of the coronavirus after studying 422 samples.

“Any change in the coronavirus can lead to loss of control over this virus,” said Popova. “Today, Vektor has 422 isolated whole genome samples, some of them represented in an international database. To date, no significant changes have been found in the genome,” he stressed.

According to the head of Rospotrebnadzor, experts have not found mutations that “could lead to changes in the epidemiological potential ” of the coronavirus.

The G variant of the virus, “which has certain mutations,” is the most widespread, Popova recalls. “We suppose that the particular D615G mutation in the S gene conditions the acceleration of the transmission of the virus from person to person”, the expert points out, although she remembers that “so far it is an assumption”.

© The Eastern Herald
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