Johnson & Johnson Says Its Booster Shot Provides Increased Protection From COVID-19

https://www.npr.org/2021/09/21/ [login to see] /johnson-johnson-booster-shot-provides-increased-protection-from-covid
People who receive a Johnson & Johnson COVID-19 vaccine booster shot are better protected against the coronavirus for a longer period of time, according to the pharmaceutical company's latest trial results.

The one-dose Johnson & Johnson vaccine has been found to be 66% protective against moderate and severe disease overall worldwide and 72% protective against such cases in the U.S. But when a person receives a booster shot two months after getting the pharmaceutical company's one-dose vaccine, the protection against COVID-19 increased to 94%.

A booster shot at six months provided a 12-fold increase in antibodies.

The company had previously shared earlier evidence from this trial that people who received its one-shot COVID-19 vaccine could benefit from a booster shot after six months. The information shared Tuesday was part of the company's Phase 3 trial.

"Our large real-world-evidence and Phase 3 studies confirm that the single-shot Johnson & Johnson vaccine provides strong and long-lasting protection against COVID-19-related hospitalizations. Additionally, our Phase 3 trial data further confirms protection against COVID-19 related death," said Mathai Mammen, global head of Janssen research and development for Johnson & Johnson, in a statement.