"Vaccinating this age group can provide greater confidence to families that their children and adolescents participating in childcare, scho...

The requirement, which is enforced by the Transportation Security Administration, had been set to expire on March 18, but was extended by a...

Delta said it expected to cancel more than 250 of 4,133 scheduled flights on Tuesday, while Alaska cancelled 170 flights across its network...

At least 15 states have reported Omicron cases: California, Colorado, Connecticut, Hawaii, Maryland, Massachusetts, Minnesota, Missouri, Ne...

The panel on Thursday voted against saying that people can get a booster if they are ages 18 to 64 years and are health-care workers or hav...

The CDC will invest $2.1 billion to protect patients and healthcare workers from Covid-19 and future infectious diseases, CDC director Roch...

The vaccines remain powerfully effective against severe illness and death, and the agency said infections in vaccinated people were compara...

"The best way to prevent the spread of COVID-19 variants is to prevent the spread of disease, and vaccination is the most powerful tool we ...

"There is a clear message that is coming through: this is becoming a pandemic of the unvaccinated," Centers for Disease Control and Prevent...

"The whole situation is so dynamic because of the variants that are now circulating and...the Delta variant is well on its way to becoming ...

BioNTech said on Thursday that it expected its Covid-19 vaccine, jointly developed with Pfizer, to be available to 12 to 15-year-olds in Eu...

President Joe Biden and a top health official warned that too many Americans are declaring virus victory too quickly, appealing for mask re...

The study by the U.S. Centers for Disease Control and Prevention (CDC) evaluated the vaccines' ability to protect against infection, includ...

United States surpassed 30 million cases of COVID-19 on Sunday, and the seven-day average of new cases was slightly less than 60,000 cases ...

The agency has already warned that the highly contagious mutant strain that emerged in the UK could become dominant among Americans in the ...

The U.S. has recorded more than 27.5 million virus cases and more than 484,000 deaths, according to the Johns Hopkins data.

Vaccination has become ever more urgent with the recent emergence of several coronavirus variants believed to be more transmissible, and in...