- The short waiting period for the booster comes as data shows that the two doses do not provide strong protection against symptomatic infection from Omicron.
- Real-world data from the United Kingdom shows that boosters are up to 75% effective at preventing symptomatic infections from Omicron.
- Earlier this week, the FDA authorized everyone 12 and older receiving Pfizer and BioNTech vaccines to receive a booster dose at least five months after their second dose.
The Food and Drug Administration on Friday authorized adults 18 and older who have been vaccinated with Moderna to receive a booster shot five months after their second dose, reducing the waiting period to one month. Is.
Earlier this week, the FDA authorized everyone 12 and older receiving the Pfizer and BioNTech vaccines to receive a booster dose at least five months after their second dose, which was less than six.
The Centers for Disease Control and Prevention originally recommended Moderna Booster for adults in October. The CDC on Wednesday reduced eligibility for a Pfizer booster for people 12 and older.
Moderna and Pfizer are the most commonly administered vaccines in the US. The short waiting period for boosters comes as data shows that the two doses do not provide strong protection against symptomatic infection in the US from the major variant Omicron, although they still offer good protection. Provides against serious illness.
According to a report published last week from the UK Health Protection Agency, real-world data from the United Kingdom shows that boosters are up to 75% effective at preventing symptomatic infection from Omicron two weeks after receiving the shot.
“Vaccination is our best defense against COVID-19, including circulating variants, and reducing the period between completion of the primary series and the booster dose has been shown to reduce immunity,” said Dr Peter Marks, head of the FDA group. It might help.” For vaccine safety.
Moderna CEO Stefan Bansel said in an interview at a Goldman Sachs event yesterday that a fourth dose may be necessary at some point because the protection provided by the booster is also likely to decline over time.
Referring to the strength of the booster shots, Bansal said, “When we get to that data in the coming weeks I’ll be surprised if it’s holding up well over time – I expect it’s not going to be great. “
The UK’s Health Protection Agency found that booster protection begins to decline after about four weeks. Boosters were 55% to 70% effective at preventing infection at five to nine weeks, and 40% to 50% effective 10 weeks after receiving the shot.
Pfizer CEO Albert Boerla told CNBC last month that people will need a fourth dose, and may need the shot sooner than expected because of Omicron’s virus.
The US is currently facing an unprecedented wave of Covid infections, with an average of more than 600,000 new cases per day, according to a CNBC analysis of Johns Hopkins University data. This is an increase of 72% from a week ago and a pandemic record.