The Moderna vaccine's ability to shield against infection drops sharply when tested on the omicron variant. But getting a booster pumps the protection back up again, new research suggests.
With a fast-growing winter surge upon us, self-testing kits remain expensive and hard to find. The reasons go back to the approach the U.S. took from the outset in developing tests.
A vaccine from a Canadian biotech firm Medicago has been found to be effective at preventing moderate to severe disease. It could soon become the first plant-based vaccine authorized for human use.
Omicron has many more mutations than previous variants of concern, a fact that raises questions about how effective existing vaccines will be against the new form of the coronavirus.
Pfizer researchers looking for a drug to treat SARS found clues that gave the company a head start in its quest for a pill to treat COVID-19, including the omicron variant.
Protein subunit vaccines work by injecting people with a tiny portion of a virus. In the case of the COVID-19 vaccine, that tiny portion is the spike protein that the coronavirus uses to enter cells.
If the Food and Drug Administration authorizes use of the drug, called molnupiravir, it would be the first oral COVID-19 treatment that could be taken at home.
The FDA is considering new pills that could treat people in early stages of COVID. Here's what to know about how they work, how effective they are and the impact they could make on the pandemic.
Service dogs have long helped veterans with vision or mobility problems. Now the PAWS Veterans Therapy Act will help connect specially trained dogs to some veterans with symptoms of traumatic stress.
Scientists have begun to find abnormalities in the immune systems of some long-COVID patients that might help explain the syndrome, at least in some people. But there is still much more to learn.
Kids who need hormone-blocking drugs to prevent premature puberty — or delay it if they're trans — have lost a more affordable option. The remaining nearly identical drug costs eight times more.
A concussion can make it difficult to converse in a noisy room. Scientists say that's because the injury has impaired the brain's ability to process sounds.
Hospitals and doctors are facing more demands for ivermectin as a Covid-19 treatment, despite no proof it works. In some Republican-dominated states, lawmakers and attorney generals are weighing in.
