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¿Qué tanta protección ofrece la primera dosis de la vacuna contra el Covid-19?

La vacuna Pfizer-BioNTech contra el Covid-19 demostró una eficacia del 52 por ciento en la protección contra la enfermedad después de la primera dosis, según los datos del ensayo clínico. La vacuna Moderna demostró una eficacia del 80.2 por ciento después de la primera dosis. Para maximizar la protección de estas vacunas, es importante recibir ambas dosis.

Para obtener más información sobre la eficacia de la vacuna, haga clic aquí.

Puede informarse más sobre los ensayos clínicos de las vacunas Pfizer-BioNTech y Moderna autorizadas por la FDA en dichas respectivas ligas.

Consider a recent study carried out by the Centers for Disease Control and Prevention (CDC) of the authorized vaccines. Pfizer-BioNTech and Moderna's vaccines were found to be 82 percent effective after one dose in preventing people from getting Covid-19 cases with symptoms.

The Pfizer-BioNTech Covid-19 vaccine demonstrated 52 percent efficacy in protecting against disease after the first dose, according to the clinical trial data. The Moderna vaccine demonstrated 80.2 percent efficacy after the first dose. To maximize the protection from these vaccines, it is important to get both doses.

 The Johnson & Johnson vaccine was 85 percent effective in preventing severe disease across all regions studied, and showed protection against COVID-19 related hospitalization and death, beginning 28 days after vaccination, according to existing data.

Learn more about vaccine efficacy here.

Read more about the clinical trials for the FDA-authorizedPfizer-BioNTech, Johnson & Johnson, and Moderna vaccines.  

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