Covid-19 vaccines: what is the most effective vaccine?

Covid-19 vaccines: what is the most effective vaccine?

The process to apply the covid-19 vaccine will be the priority issue in the world in the coming years as countries try to fight the coronavirus pandemic. What is the best or most effective covid-19 vaccine?

The Sputnik V vaccine is 91.6% effective in preventing symptomatic covid-19 and 100% effective in preventing severe coronavirus disease, according to an interim analysis of data from the phase 3 trial, published in the medical journal The Lancet. Several countries in Latin America will receive the Russian vaccine.

The high effectiveness of the Sputnik V vaccine, which received criticism in 2020 because it was approved and rapidly deployed, is close to the most successful ones such as that of Pfizer / BioNTech – which is already applied 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.

On the other end of the spectrum is the Sinovac vaccine, which is just 49.62% effective on average, and the Johnson & Johnson vaccine, which is 66% effective.

MIRA: 800,000 doses of the Sinovac vaccine against covid-19 arrived in Mexico

The U.S. Food and Drug Administration (FDA) approved the emergency use of a third COVID-19 vaccine in the country, manufactured by Johnson & Johnson’s Vaccine Division, Janssen Biotech.

While some companies and laboratories continue to do trials, and others are already distributing their vaccine against covid-19, this is what we know about the effectiveness of 8 of them, developed by Pfizer / BioNTech, Moderna, Johnson & Johnson, AstraZeneca, Novavax , Sputnik V, Sinopharm and Sinovac.