Britain and Canada have authorized another round of booster shots for older and immunocompromised citizens. So far, U.S. officials haven’t followed suit.
A new analysis summarizes the emerging picture of factors that make long-term post-Covid symptoms more likely.
In 2021, deaths of pregnant women soared by 40 percent in the United States, according to new government figures. Here’s how one family coped after the virus threatened a pregnant mother.
A pregnant woman is more likely to develop serious Covid-19 and to die of it. Several factors amplify the risks.
The shots, if approved by the agency, would be the first vaccines publicly available against a respiratory virus that kills thousands a year. Some advisers did cite a small but identifiable health risk.
Seniors continue to bear the brunt of deaths and hospitalizations, even as most of the nation abandons precautions: “Americans do not agree about the duty to protect others.”
Kizzmekia Corbett helped lead a team of scientists contributing to one of the most stunning achievements in the history of immunizations: a highly effective, easily manufactured vaccine against Covid-19.
If you are high-risk, the answer is straightforward. If you are low-risk, there is less consensus.
In advance of a scientific meeting on Thursday, officials proposed offering new shots to Americans each fall, a strategy long employed against the flu.
The B.C.G. vaccine, more than a century old, has shown some promise against diabetes. The university’s move left parents and outside investigators concerned.