Patients shouldn’t drink, eat, smoke, or brush their teeth three hours before taking the COVID test for the analysis to be reliable, said Head of the Department of Infectious Diseases of Russia’s RUDN University Galina Kozhevnikova, RBC channel reports.
You shouldn’t blow your nose and rinse it before the procedure. If these rules are ignored, the test won’t detect any pathogens, she said.
The timing of the test also affects the result. If the infection was recent, the amount of virus may be low and the test won’t show it.
If a person has been sick for a long time, he or she may no longer have the virus in his or her throat or nose, she added.
The development of the disease this time will take place in the lower respiratory tract, she noted.
NEWS.ru reported earlier that Russia’s Vector center would launch 50,000 doses of COVID-19 vaccine by year-end.