A new study from the Netherlands concluded that when rare breakthrough COVID-19 infections occur in vaccinated individuals, the viral loads are comparable to those in unvaccinated, infected people. But there's simultaneously less infectious viral particle shedding, which in other words suggests that vaccinated people are probably still less likely to transmit the virus, though further study is necessary.
The non-peer reviewed findings are based on an analysis of 161 breakthrough infections — the majority of which were caused by the Delta variant — among a population of 24,706 vaccinated health-care workers. They seem to line up with some other evidence that indicate a reduced transmission risk among the vaccinated who contract the virus.
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.
-
Today's political cartoons - February 22, 2025Cartoons Saturday's cartoons - bricking it, I can buy myself flowers, and more
-
5 exclusive cartoons about Trump and Putin negotiating peaceCartoons Artists take on alternative timelines, missing participants, and more
-
The AI arms raceTalking Point The fixation on AI-powered economic growth risks drowning out concerns around the technology which have yet to be resolved
-
Ozempic can curb alcohol cravings, study findsSpeed read Weight loss drugs like Ozempic and Wegovy may also be helpful in limiting alcohol consumption
-
New form of H5N1 bird flu found in US dairy cowsSpeed Read This new form of bird flu is different from the version that spread through herds in the last year
-
Microplastics accumulating in human brains, study findsSpeed Read The amount of tiny plastic particles found in human brains increased dramatically from 2016 to 2024
-
FDA approves painkiller said to thwart addictionSpeed Read Suzetrigine, being sold as Journavx, is the first new pharmaceutical pain treatment approved by the FDA in 20 years
-
Study finds possible alternative abortion pillSpeed Read An emergency contraception (morning-after) pill called Ella could be an alternative to mifepristone for abortions
-
HMPV is spreading in China but there's no need to worryThe Explainer Respiratory illness is common in winter
-
Marty Makary: the medical contrarian who will lead the FDAIn the Spotlight What Johns Hopkins surgeon and commentator Marty Makary will bring to the FDA
-
California declares bird flu emergencySpeed Read The emergency came hours after the nation's first person with severe bird flu infection was hospitalized
