Repeat vaccination with vaccines based on the adenovirus vector, which include Sputnik V, is possible after six months after initial inoculation, as during this time, immunity against adenoviruses becomes weaker, Russian Health Ministry’s chief visiting specialist on infectious diseases Vladimir Chulanov told reporters on Tuesday, APA reports citing TASS.
"The hypothesis on the impossibility of revaccination with the vaccine based on the adenovirus vector has no scientific basis. Independent research works have proven the possibility and the effectiveness of revaccination with vaccines based on the adenovirus vector in six and more months since the initial vaccination course. During this time, the level of antibodies against the adenovirus drops to the basic level and does not significantly affect further inoculation," he said.
Chulanov stressed that the possibility of using Sputnik V for revaccination is especially important, as its efficiency reaches 91.6% according to the results of the clinical trials.
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