(CNN Español) – Vaccination against Covid-19 will be the top priority in the world for years to come as countries try to fight the coronavirus pandemic. What is the Most Effective Vaccine?
The Sputnik V vaccine is 91.6% effective in preventing symptomatic COVID-19 and 100% effective in preventing serious coronavirus disease, an interim analysis of data from the phase 3 study shows, published Tuesday in the medical journal The Lancet. Several countries in Latin America will receive the Russian vaccine.
MIRA: Countries of Latin America and the Caribbean have already been notified by COVAX of the allocations of vaccines against Covid-19
The high effectiveness of Sputnik V, which was criticized in 2020 for being quickly adopted and deployed, is close to the most successful, such as that of Pfizer / BioNTech – already in use in Europe and the United States – which reports an effectiveness of 95% to prevent symptomatic infections, and Moderna’s vaccine, which is 94% effective in preventing symptomatic infections.
At the other end of the spectrum is the Chinese Sinovac vaccine, which is only 49.62% effective on average, and the Johnson & Johnson vaccine, which is 66% effective.
On Wednesday, British researchers reported that the Oxford / AstraZeneca vaccine would reduce the transmission of the virus, rather than simply reduce the severity of the disease.
While some companies and labs continue to do trials and others already distribute their vaccines, here’s what we know about the efficacy of 8 of them, developed by Pfizer / BioNTech, Moderna, Johnson & Johnson, AstraZeneca, Novavax, Sputnik V, Sinopharm and Sinovac .
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