"You don't make the timeline, the virus makes the timeline."
Updating results
Sen. Ron Johnson's spokesperson later said Johnson "has never stated nor does believe that the vaccine causes HIV."
US children under 5 are getting closer to authorized Covid-19 vaccines, but most parents may be reluctant to actually get them when they becom…
The United States might need to update its Covid-19 vaccines each year, according to a trio of top US Food and Drug Administration officials, and "a new normal" may include an annual Covid-19 vaccine alongside a seasonal flu shot.
There's no denying the numbers: Even with spotty reporting, Covid-19 cases and hospitalizations are rising again in the United States.
An infections disease doctor discusses the use, benefits and availability of a drug to prevent severe COVID-19.
The World Health Organization and the United Nations International Children's Emergency Fund warned of an increased risk of measles spread, with worldwide cases up nearly 80% so far in 2022 compared with 2021.
For two years, China's Communist Party has enforced a costly regime of strict border quarantines, snap lockdowns, and mass digital tracking in the service of a single goal: Zero Covid cases.
The lifting of mask requirements on airplanes last week and, in many parts of the country, on public transportation is a major turning point i…
A U.K. patient with a severely weakened immune system had COVID-19 for almost a year and a half, scientists reported. Get that, and more COVID news from today, here.
Vaccine advisers to the US Centers for Disease Control and Prevention continue to mull over what the future of Covid-19 booster shots might look like -- and they acknowledge that entirely different vaccine formulations could be needed.
When Delta Air Lines referred to Covid-19 as an "ordinary seasonal virus" after a federal judge struck down the Biden administration's mask mandate for public transportation, they were partly right: there is some evidence that it is seasonal. But it is far from ordinary, and it's still not the same as the flu.
On Monday, a federal judge in Florida struck down the Biden administration's mask mandate for airplanes, trains and other public transport. Within hours, several major airlines announced that they would no longer be enforcing mask requirements, and mask-wearing is optional.
Worried about COVID when you return to work? Getting vaccinated with your booster, that’s the most important thing.
The differences in cases, hospitalizations and deaths between the unvaccinated and vaccinated are smaller than before.
ANAHEIM, Calif. — Justin Cohen has waited for the gates to the Coachella Valley Music and Arts Festival to reopen for a long time. How long? The 32-year-old West Hollywood dog walker bought his ticket in June 2019 and has held onto it ever since. “I remember when it got postponed in March 2020,” Cohen says. “I said right then, ‘When we can go back to Coachella, it’ll be almost like an ...
Pfizer says new data shows healthy 5- to 11-year-olds could benefit from another kid-sized shot.
A third shot of the children's dose of Pfizer/BioNTech's Covid-19 vaccine raised Omicron-fighting antibodies by 36 times in kids 5 through 11 years of age, the companies said in a news release Thursday. The companies plan to request emergency use authorization from the US Food and Drug Administration for a booster dose for this age group.
As the United States navigates a third year of the Covid-19 pandemic, cases are rising modestly in the Northeast, Philadelphia has reinstituted an indoor mask mandate and some colleges are requiring masks during the final days of the spring semester.
Covid-19 case numbers have begun to edge up in the United States, and nearly all of them are caused by the Omicron subvariant BA.2.
A recent outbreak of Covid-19 cases among officials in Washington, with dozens testing positive after attending the Gridiron Club Dinner, has put the concept of Covid-19 superspreading back in the spotlight.
A fourth dose of the Pfizer/BioNTech Covid-19 vaccine seems to offer short-lived protection against infection overall, but protection against severe illness did not wane for at least several weeks, according to a new study.
Advisers to the US Food and Drug Administration are scheduled to meet Wednesday to get a clearer picture of what the future of Covid-19 booster shots might look like.
The Omicron coronavirus variant may be reaching around the world, but different places are seeing significantly different effects.
The youngest group eligible to be vaccinated against Covid-19 in the US, children ages 5 to 11, is also the least vaccinated one.