The report of the Gamaleya Center indicates that the drug has passed the registration procedure, which is applied in
In addition, it remains unknown how long the immunity to the new type of coronavirus will remain - the studies were not extensive enough and were carried out in a short time.
The protective titer is currently unknown. The duration of the protection is unknown. Clinical studies to study the epidemiological effectiveness have not been conducted.
excerpt from the documents of the Gamaleya Center
The titer is the limiting dilution of a blood serum sample, at which the activity of antibodies is detected.
42 days after vaccination in bloodof the volunteers, the antibodies to the virus were recorded with an average titer of 49.3. Fontanka notes that this value is even lower than the average level of antibodies, and over time it may decrease.
However, the Ministry of Health claims that the vaccine inable to form a stable immunity - at least it should last for about two years. Professor of Pathophysiology at the First Moscow State Medical University. Sechenov, Anton Ershov noted that there is no evidence of this.
Also from the report of the Gamaleya Center it became clear thatside effects in vaccinated people are "frequent or very common." However, it is not possible to determine more precisely the incidence of adverse events due to the limited sample of study participants.
In 38 volunteers, a total of144 side effects, however, most of them did not have serious consequences. Still, 42 days after vaccination, 31 symptoms persisted. It is noted that they were mainly associated with deviations in the parameters of the immune system. The Gamalea Center document states that the outcome of 27 events is still unclear.
In particular, volunteers who received the vaccinecomplained of fever, headache, diarrhea, asthenia, malaise, pyrexia, nasal congestion, sore throat and rhinorrhea. Edema, pain, pyrexia, and itching were noted at the site of inoculation.
The vaccine cannot be administered to pensioners, children and pregnant women - no studies have been conducted on them.
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