Ну как же нет? Читайте внимательнее."The two preliminary studies from the vaccine developers, published in September 20202, involved 76 healthy adults who received the two doses with different viral vectors three weeks apart. All participants produced antibodies to the SARS-CoV-2 spike protein, and adverse events reported were mainly mild pain at the injection site, fever, headache, fatigue and muscle aches — adverse events typical of other SARS-CoV-2 vaccines.The phase III trial, published in interim form in February, randomized 14,964 adults to receive the two-dose vaccine and 5,476 to receive two doses of placebo. Only 16 subjects in the vaccine group developed symptomatic COVID-19, compared with 62 in the placebo group, representing a vaccine efficacy of 91.6%. Furthermore, there were no cases of moderate to severe disease in the vaccine group, but 20 in the placebo group.Unpublished data from 3.8 million Russians vaccinated with two doses also point to an efficacy of 97.6%, according to an April press release from the Gamaleya Institute. Figures released by the United Arab Emirates Ministry of Health from some 81,000 individuals who had received two doses of the vaccine, suggested 97.8% efficacy in preventing symptomatic COVID-19 and 100% efficacy in preventing severe disease.Russia’s phase III study also found that even one dose was 73.6% effective at preventing moderate to severe disease. This led the Russian health authorities to approve the one-dose Sputnik Light — which uses the rAd26 vector — in May, on the basis of data from the country’s own vaccination programme, which suggested it was 79.4% effective at preventing symptomatic disease.Since then, an as-yet unpublished study from the Buenos Aires Ministry of Health in Argentina, involving 40,387 vaccinated and 146,194 unvaccinated people aged 60–79, found that a single dose of Sputnik Light reduced symptomatic infections by 78.6%, hospitalizations by 87.6% effective and deaths by 84.7%."