The effectiveness of the Pfizer booster decreases after 4 months but still protects well

Its protection against hospitalization fell from 91% at two months to 78% at the fourth month, according to one study. Separately, the CDC now recommends immunocompromised Americans receive a booster three months after the first round of Pfizer-BioNTech or Moderna vaccines, rather than the current five months.

CNN: Effectiveness of Covid-19 vaccine booster declines after four months but still offers protection, study finds

Booster doses of the Pfizer/BioNTech and Moderna coronavirus vaccines are safe and provide high levels of protection against severe Covid-19, although this protection may decline over time, according to two studies published by the Centers for Disease Control and Prevention from the United States on Friday. Evidence of waning protection “reinforces the importance of considering more additional doses to maintain or improve protection” against Covid-19-related hospitalizations and emergency room visits, according to one of the studies. (Howard, 2/13)

AP: Study: Effectiveness of COVID reminder declines but remains strong

Early insight into the performance of COVID-19 booster shots during the recent wave of omicron in the US suggested a decline in effectiveness, although the shots still offered strong protection against severe disease. The report, released Friday by the Centers for Disease Control and Prevention, is seen as an early and limited look at the durability of booster protection during the omicron surge that exploded in December and January but has faded in recent months. last weeks. (Stobbe, 2/11)

But immunocompromised people can get a booster sooner —

The Washington Post: CDC recommends people with weakened immune systems get booster doses after three months instead of five

The Centers for Disease Control and Prevention on Friday updated its guidelines for some people with weakened immune systems, recommending that they receive a booster dose of the coronavirus vaccine three months after completing the first series of Pfizer-BioNTech vaccines. or Moderna, rather than the current five-month interval. The guidelines also say that immunocompromised people who have received the single-shot Johnson & Johnson vaccine should receive an additional dose. This means two doses, at least 28 days apart, followed by a booster dose of one of the mRNA vaccines. (Sun, 2/11)

In other vaccine rollout news –

The Denver Channel: Many Fully Vaccinated Americans Say No to Booster

Across the country, states are easing COVID-19 restrictions even as the federal government and the Centers for Disease Control continue to say masks should always be worn in public spaces. So how close are we to the end of the health crisis, and why are some public health experts warning of an impending recall problem? (St. George, 2/14)

Bay Area News Group: COVID vaccine hesitancy remains in Black and Latino families in the Bay Area

Thousands of Bay Area school children still do not have their COVID-19 vaccines despite impending school vaccination mandates, causing uncertainty among school leaders and fear among parents about how requirements could impact long-term and short-term learning for unvaccinated students. Despite efforts to increase the number of vaccinations in the region since last fall, black and Latino teenagers aged 12 and older remain less likely to be vaccinated against the virus than their white and Asian schoolmates, an analysis from the Bay Area News Group of data from local school districts and public health departments found. (Jimenez and Rowan, 2/13)

Stat: Why Covid-19 vaccines are a chilling miracle

Two years after the start of the Covid-19 pandemic, it is easy to lament all that has happened. The devastating losses. Disruption of what we considered normal ways of life. The relentlessness of it all. But let’s stop for a moment and consider something else that you may have missed: you witnessed – and benefited from – a chilling miracle. That miracle is the development, testing, manufacturing and global distribution of Covid vaccines. (Branswell, 2/14)

This is part of the KHN Morning Briefing, a summary of health policy coverage from major news outlets. Sign up for an email subscription.

Sara H. Byrd