Pfizer COVID-19 vaccine offers six months of protection, clinical trial show

Pfizer/BioNTech said Thursday that the COVID-19 vaccine offers protection that lasts six months after the second dose, according to ongoing research for their Phase 3 clinical trial.  

The vaccine is 91% effective against disease with any symptoms for half a year and offers protection against the South African variant of the virus called B.1.351.  

“The vaccine was 100% effective against severe disease as defined by the U.S. Centers for Disease Control and Prevention (CDC), and 95.3% effective against severe COVID-19 as defined by the U.S. Food and Drug Administration (FDA),” Pfizer and BioNTech said in a statement to CNN.  

RELATED: Pfizer/BioNTech testing COVID-19 vaccine in children under 12 

The vaccine’s protection of six months is longer than previously thought, according to CNN.  

“The high vaccine efficacy observed through up to six months following a second dose and against the variant prevalent in South Africa provides further confidence in our vaccine’s overall effectiveness,” said Pfizer’s chairman and CEO, Albert Bourla.  

Over 44,000 adults are participating in the Phase 3 trials. The data is from 12,000 of those participants, according to Yahoo.  

The news comes after the companies revealed that the vaccine offers adequate protection for adolescents between 12 and 15 years old, BNC previously reported. 

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