Clinically vulnerable people tended not to respond as well after the first and second shots, but their immunity rises to greater levels with a booster.
Bivalent vaccines target omicron alongside the original strain of COVID.
Lithiumphoto/Shutterstock
We don’t have a lot of scientific evidence on how much additional protection a fourth dose would offer younger adults. But on balance, giving them the option could be worthwhile.
The mental wellbeing benefits associated with COVID vaccination were substantial among older and clinically vulnerable people, but negligible for younger adults.
A new study looked at the health records of more than 9 million people in England to assess whether body weight influenced the uptake and effectiveness of COVID vaccines.
Scientists are working on intranasal COVID vaccines. Not only are these vaccines delivered differently – but they also target a different part of our immune system.
Fourth doses are now being offered to vulnerable groups. But if you’re young and healthy, will you need one?
Over the past couple of decades there has been a shift away from upholding patient autonomy to prioritizing public health.
Terry Vine/DigitalVision via Getty Images