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A large-scale study in Buenos Aires from December 29, 2020, to May 15, 2021, with 663,602 participants aged 60 and older who received Spunik V, the Oxford–AstraZeneca vaccine, or the Sinopharm BIBP vaccine observed an overall efficacy of 98% (95% CI, 95 – 99%) against COVID-19-related deaths. The study noted that the three vaccines showed a ...
Moderna has launched a trial of a vaccine to tackle the Beta variant or lineage B.1.351. [460] On 17 February 2021, Pfizer announced neutralization activity was reduced by two-thirds for this variant, while stating that no claims about the efficacy of the vaccine in preventing illness for this variant could yet be made. [461]
Vaccine Initial effectiveness by severity of COVID-19 Study location Refs Asymptomatic Symptomatic Hospitalization Death Oxford–AstraZeneca
Pfizer and Moderna vaccines are both safe and have similar effectiveness at preventing COVID-19 illness. Clinical trial data when they were first released in December 2020 showed 95% efficacy for ...
Russia was quick to develop its two-dose Sputnik V vaccine last year and has also deployed a one-shot Sputnik Light vaccine, both of which have it says demonstrated high efficacy in trials, but ...
The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus. Moderna Inc ...
The head of the Russian Direct Investment Fund (RDIF) stated that 20 countries had requested in total 1 billion doses of the vaccine, nicknamed Sputnik V. [11] On August 20 registration was called "conditional" with final registration depends on results of Phase 3 trial, [12] such registration is limited and allowed by Decree 441 for medicines ...
Retrospective cohort study of the effectiveness of two Russian vaccines against the SARS-CoV-2 Delta variant in Moscow (June–July 2021) proved that EpiVacCorona, unlike Sputnik V, is an ineffective vaccine and therefore cannot protect against COVID-19.