WASHINGTON — Additional COVID-19 vaccine booster shots are not needed for the general population, leading scientists including two departing senior U.S. Food and Drug Administration officials and several from the World Health Organization (WHO) said in an article published in a medical journal on Monday.
The scientists said more evidence was needed to justify boosters. That view disagrees with U.S. government plans to begin offering another round of shots to many fully vaccinated Americans as soon as next week, contingent on approval from health regulators.
As COVID-19 cases caused by the Delta variant of the virus rise, President Joe Biden’s administration is concerned that infections among those already vaccinated are a sign that their protection is waning and has pushed boosters as a way to rebuild immunity.
The WHO has argued that the vaccines are still needed for first doses around the globe.
“Any decisions about the need for boosting or timing of boosting should be based on careful analyses of adequately controlled clinical or epidemiological data, or both, indicating a persistent and meaningful reduction in severe disease,” the scientists wrote in the Lancet medical journal.
The risk-benefit evaluation should consider the number of severe COVID-19 cases that boosting would be expected to prevent, and whether it is safe and effective against the current variants, they said.
“Current evidence does not, therefore, appear to show a need for boosting in the general population, in which efficacy against severe disease remains high,” the scientists wrote.
Some countries have begun COVID-19 booster campaigns, including Israel, providing some of the data on which the Biden administration has made its case for additional shots.
The article’s authors included the FDA Office of Vaccines Research and Review Director Marion Gruber and Deputy Director Phil Krause, both of whom plan to leave the agency in the next several months.
They acknowledged that some individuals, such as those who are immunocompromised, could benefit from an additional dose.
Broader use of boosters may be needed in the future if there is waning immunity to the primary vaccination or if new variants evolve so that the vaccines no longer protect against the virus, they said.
Boosters could also prove risky if introduced too soon or too frequently, the scientists wrote.
A panel of experts that advises the FDA on vaccines plans to meet on Sept. 17 to discuss additional doses of the Pfizer/BioNTech shot, the first step in a wider booster roll-out.
The article’s authors included WHO top scientists Soumya Swaminathan, Ana-Maria Henao-Restrepo and Mike Ryan.
“Current vaccine supplies could save more lives if used in previously unvaccinated populations,” the authors wrote.
- Russia's Covid-19 vaccine generated an immune response, study says
- Widespread Covid-19 vaccines not expected until mid-2021, says WHO
- Reports: CDC Tells States to be Ready for COVID-19 Vaccines by Nov. 1
- US Declines to Take Part in Global Effort to Develop Global COVID-19 Vaccine
- Philadelphia Health Officials Express Concerns Over Fast-Tracking COVID-19 Vaccine Ahead Of Election
- CDC Tells US States to be Ready for COVID-19 Vaccines by Nov. 1
- US States Told to Prepare to Receive COVID-19 Vaccine by Nov. 1
- UNICEF to Lead Global Initiative to Buy, Distribute COVID-19 Vaccines
- Experts call for independent commission separate from FDA to review Covid-19 vaccines
- US states told be ready to distribute Covid-19 vaccine by November 1
- Prepare for COVID-19 vaccines by the end of OCTOBER: CDC instructs states to be ready to start giving out one of two potential shots DAYS before the election - but experts claim it's a 'political stunt'
- FDA leader says agency could consider authorization for Covid-19 vaccine before Phase 3 trials are complete, Financial Times reports
- Man of faith Scott Morrison reveals why his family would take a COVID-19 vaccine made using cells from an aborted foetus - despite Christian leaders slamming the treatment
- China shows off COVID-19 vaccines for first time
- CDC documents say states should prepare to distribute Covid-19 vaccines as soon as late October
- Russia Having a 'Told-You-So' Moment as Western Countries Willing to Fast-Track COVID-19 Vaccines
- Coronavirus vaccine update | Phase-III trials of Russia’s COVID-19 vaccine Sputnik V to begin in India this month
- Fair distribution of COVID-19 vaccine a big challenge: WHO Chief Scientist Soumya Swaminathan
- Fair distribution of Covid-19 vaccine a big challenge: WHO Chief Scientist Soumya Swaminathan
- Covid-19 vaccine diplomacy in India’s outreach plan
COVID-19 vaccine boosters not widely needed, top FDA and WHO scientists say have 703 words, post on tuoitrenews.vn at September 14, 2021. This is cached page on Talk Vietnam. If you want remove this page, please contact us.