COVID-19 survivors may be protected with just 1 vaccine dose, early studies suggest
As COVID-19 vaccine doses remain in short supply, new preliminary studies suggest only giving one dose to people who've recovered from the disease is enough to protect them from reinfection.
Past studies have shown COVID-19 survivors are left with antibodies that help protect them from reinfection for at least a few months, depending on how severe their infection was. Multiple not-yet-peer-reviewed studies still suggest they need another boost from a vaccine. But when they get the first dose of the two-dose regimens approved in the U.S., they see far higher levels of protection than people who get the first dose but weren't previously infected, suggesting that one shot is all they need for now.
"Everyone should get vaccinated. Not everybody needs two shots," Viviana Simon, a professor of microbiology at New York's Icahn School of Medicine at Mount Sinai and the author of one study, summed it up to The Wall Street Journal. "As long as we can't deliver as much vaccine to everybody who wants it, I think it's an important consideration." That first dose is especially important for COVID-19 survivors when it comes to fighting off the B.1.351 variant of the virus, as studies show COVID-19 survivors' natural immunity may not be as effective as a vaccine against the strain.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
These studies come after other research suggests the Pfizer/BioNTech vaccine is at least 85 percent effective after just one dose and Moderna is at least 92 percent, leading some scientists to recommend holding off on distributing second doses until more at-risk populations get the first.
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Kathryn is a graduate of Syracuse University, with degrees in magazine journalism and information technology, along with hours to earn another degree after working at SU's independent paper The Daily Orange. She's currently recovering from a horse addiction while living in New York City, and likes to share her extremely dry sense of humor on Twitter.
-
The magician who secretly smashed the Magic Circle's glass ceiling
Under The Radar Sophie Lloyd lurked in the all-male society by posing as a teenage boy for nearly two years, but was expelled after revealing her true identity
By Chas Newkey-Burden, The Week UK Published
-
Kate Summerscale's 6 favorite true crime books about real murder cases
Feature The best-selling author recommends works by Helen Garner, Gwen Adshead, and more
By The Week US Published
-
Team of bitter rivals
Opinion Will internal tensions tear apart Trump's unlikely alliance?
By Theunis Bates Published
-
ACA opens 2025 enrollment, enters 2024 race
Speed Read Mike Johnson promises big changes to the Affordable Care Act if Trump wins the election
By Peter Weber, The Week US Published
-
McDonald's sued over E. coli linked to burger
Speed Read The outbreak has sickened at least 49 people in 10 states and left one dead
By Rafi Schwartz, The Week US Published
-
Texas dairy worker gets bird flu from infected cow
Speed Read The virus has been spreading among cattle in Texas, Kansas, Michigan and New Mexico
By Peter Weber, The Week US Published
-
Dengue hits the Americas hard and early
Speed Read Puerto Rico has declared an epidemic as dengue cases surge
By Peter Weber, The Week US Published
-
US bans final type of asbestos
Speed Read Exposure to asbestos causes about 40,000 deaths in the U.S. each year
By Peter Weber, The Week US Published
-
Seattle Children's Hospital sues Texas over 'sham' demand for transgender medical records
Speed Read Texas Attorney General Ken Paxton subpoenaed records of any Texan who received gender-affirming care at the Washington hospital
By Peter Weber, The Week US Published
-
Afghanistan has a growing female suicide problem
Speed Read The Taliban has steadily whittled away women's and girls' rights in Afghanistan over the past 2 years, prompting a surge in depression and suicide
By Peter Weber, The Week US Published
-
US life expectancy rose in 2022 but not to pre-pandemic levels
Speed Read Life expectancy is slowly crawling back up
By Devika Rao, The Week US Published