
The memory cells formed after vaccination with the Sputnik V vaccine will not be able to fully protect a person from infection with the Indian strain of CORONAVIRUS, revaccination will be required, the DIRECTOR of the National Research Center for Epidemiology and Microbiology named after V.I. N.F. Gamalei Alexander Gintsburg.
“For the time being, I believe – and this will be largely reflected in the new revaccination recommendations – that we should constantly monitor the “Indian” strain, maintaining a high level of antibodies through more frequent revaccination,” Gunzburg said.
Memory cells are "late": they begin to accumulate the required level of antibodies on the third or fourth day after vaccination, the scientist explained.
The Indian variant of COVID-19 is more contagious and dangerous due to the faster course of the disease: from the first mild flu-like symptom to worsening of the condition, it takes not 10-12 days, but three to four, Gunzburg said. Moreover, the Indian strain, in addition to the fact that “it is antigenically modified, interacts differently” with cells, recalled the head of the center. Gamaleya. Unlike Wuhan or British, which dissolve the cell, Indian produces multinucleated cells.
“That is, the virus multiplies without leaving the cells, but flowing into the next cell,” he explained. Therefore, you need to constantly have a high level of antibodies in order to “catch the virus at the entrance”. This can be achieved by revaccination with one-component Sputnik Light in six months, Gunzburg said.
The developer assessed the possibility of revaccination with "EpiVacCorona" Society
Earlier, the scientist said that Sputnik V protects against all existing strains of COVID-19, including Indian.
In RUSSIA, the epidemiological situation has deteriorated sharply since June. Over the past four days, more than 17 thousand new cases of coronavirus infection have been registered per day. Authorities attribute the increase in the number of infected to the spread of the Indian variant of the virus. Moscow Mayor Sergei Sobyanin reported that because of him, COVID-19 began to be detected in vaccinated and recovered patients.
Now the Ministry of HEALTH is preparing recommendations for revaccination against coronavirus. Those vaccinated with Sputnik V will be able to be vaccinated again with the same vaccine or Sputnik Light.
Revaccination against COVID-19 in Russia is "inevitable", the Kremlin said.
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