Officials say the Army has reenlisted more than 23 soldiers who were discharged for refusing the COVID-19 vaccine

The executive order applies to students and not to teachers or staff. 

President Trump on Friday signed an executive order that would strip schools of federal aid if they mandate COVID vaccines, a pool report said.

When asked by Sen. Bernie Sanders, I-Vt., if he agrees the vaccines saved millions of lives, Kennedy said, "I don't know. We don't have a good surveillance system, unfortunately.”

Updated COVID-19 vaccines are arriving for the fall and winter season. Experts say you should get vaccinated, but you may not need to rush to receive the shot.

The CDC is ending a program that provided free COVID vaccines to uninsured Americans. What does this mean for the rollout of the updated COVID shots?

Here's what you need to know about the updated COVID-19 vaccines, which will be available soon.

The CDC recommends everyone ages 6 months and older get vaccinated.

Updated COVID-19 vaccines are expected to be rolled out in August or September. Here's everything you need to know about the shots.

A new study published Wednesday found there was no significant risk of birth defects linked to babies born to women who received the COVID vaccine in the first trimester.

Sandra Lindsay was one of seventeen recipients to be honored with the Presidential Medal of Freedom by President Joe Biden.

Florida Gov. Ron DeSantis is advising against the use of the new COVID-19 booster for people under the age of 65, even as infections tick upward in the U.S.

Maryland launches $1 million vaccination scholarship program, VaxU.

Dr. Anthony Fauci appeared on ABC's "This Week" Sunday.

A NIH-sponsored clinical trial has begun testing a nasal COVID-19 vaccine. Here's what you need to know about the possible next generation of shots.

Moderna's combo flu and COVID vaccine provided a strong immune response in older adults, with levels comparable to getting the flu and COVID shots separately.

Moderna's combo flu and COVID vaccine provided a strong immune response in older adults, with levels comparable to getting the flu and COVID shots separately.

Why vaccinating the world against COVID-19 is a monumental undertaking.

COVID-19 vaccines were found to cut risk of heart failure by up to 55% and blood clots by up to 78% following COVID infection, according to a new study.

Researchers in the study looked at the original strain of the virus and the delta variant.

Vaccines are proven to reduce deaths and help end pandemics, but the historic speed that the coronavirus vaccines have been developed has made some people hesitant to take them.

Newly released survey data from the CDC shows 36 million American adults, about 13.9% of the U.S. adult population, has received the updated COVID vaccine.

With new flu and COVID-19 vaccines available, which one is the right one for you?

Older adults who got a COVID booster and a high-dose version of the flu vaccine together may have an increased risk of stroke, according to a new FDA-funded study.

Moderna announced the first participant has been dosed in the company's phase 3 clinical trial of its combination flu and COVID vaccine.

The latest poll conducted by the KFF COVID-19 Vaccine Monitor found that nearly half of all adults in the U.S. plan to get the newly recommended COVID-19 vaccine.

Immunity wanes after anywhere from 3-6 months, experts say.

ABCNL's Elizabeth Schulze sits with U.S. Surgeon General Dr. Vivek Murthy and our panel to discuss the resurgence of COVID and the new booster shot.

Florida's former surgeon general is speaking out against the DeSantis administration advising against updated COVID shots for people under 65.

The latest, updated COVID-19 vaccines should soon be available to everyone and offered largely free of cost, according to the CDC.

The director advises that anyone 6 months and older should get at least one updated shot.

"We'd all wish for COVID to be in the rearview mirror but, unfortunately, it's still here," CDC Director Mandy Cohen told ABC News.

The CDC recommended that all Americans aged 6 months and older receive the new COVID booster that targets currently circulating variants.

ABC News' Linsey Davis spoke with new CDC Director Mandy Cohen about the approval of a new COVID booster shot and why she feels it is so important for vaccinated and unvaccinated people to get them.

It comes just a day after the U.S. Food and Drug Administration authorized and approved the new shot.

Despite the continued rise, the most recent week was the smallest percent increase in the past 2 months, according to the CDC data.

The U.S. Food and Drug Administration authorized and approved updated COVID-19 boosters on Monday amid rising cases and hospitalizations. CDC approval is the next step.

COVID-19 hospitalizations are on the rise across the country; nearly 9% over the prior week.

The new shots now await approval from the U.S. Centers for Disease Control before they are available to the public.

The upcoming COVID-19 booster is expected as early as next week.

The updated shot protects against severe disease and death for all current variants, including the now-dominant strain, BA.2.86, the company said.

A new COVID-19 booster from Moderna shows promising results for protecting against a new omicron subvariant, while the CDC reported a rise in RSV cases in the Southeast.

The updated COVID vaccine should be released in mid September.

Over $1.4 billion has been awarded to clinical trials for COVID-19 vaccines, the development of a new monoclonal antibody, and new vaccines and therapeutic technologies.

Despite the rising number of COVID cases and hospitalizations, experts said most people should wait for the updated boosters to be released before getting another shot.

ABC News chief medical correspondent Dr. Jen Ashton explains the recommendations from the FDA to update vaccines against the latest COVID-19 strain, which will likely have mutated by winter.

The study looked at protection offered from the original vaccines but not from the updated bivalent boosters.

A new study found that the original COVID-19 vaccines saw their effectiveness decline against infection with the omicron variant to less than 20%.

An upstate New York midwifery is facing federal charges after allegedly distributing thousands of fake COVID-19 vaccination cards and destroying vaccine vials.

The FDA authorized a second omicron-targeted bivalent COVID-19 booster vaccine for people over 65 or who are immunocompromised.