Doctor Wheat: after 4-5 days of illness, the probability of detecting COVID-19 in the nasopharynx is reduced 
The probability of detecting COVID-19 in the nasopharynx with testing may decrease by the fourth or fifth day, in this regard, the PCR test sometimes gives a negative result during illness. Natalya Pshenichnaya, Deputy Director for Clinical and Analytical Work of the Central Research Institute of Epidemiology of Rospotrebnadzor, warned about these problems, Ura.ru reports.
Materials on the topic00: 02 – October 15 
” He will torment humanity “DNA mutations and vaccine side effects: biologist destroys the main myths about coronavirus /> “Mild epidemic of dementia” Russians do not want to be vaccinated and observe antiquarian measures. What do doctors say about this?
The doctor explained that at the same time, respiratory symptoms may be in full swing at this time.
Previously, Corresponding Member of the Russian Academy of Sciences, Head of the Cell Proliferation Laboratory of the V.A. … Engelhardt, Petr Chumakov spoke in favor of compulsory vaccination in Russia.
According to the doctor, in the conditions of the spread of the “delta” strain of coronavirus, it is important that about 80 percent of the population be vaccinated. As of November 5, according to the data of the operational headquarters, collective immunity in Russia is 48 percent.