The Food and Drug Administration has authorized booster shots for the Moderna and Johnson & Johnson COVID-19 vaccines. It's also allowing "mixing and matching" of vaccines as boosters.

More than 300,0000 people in Colorado received the one-shot Johnson & Johnson vaccine. Here's how getting a booster shot works for them.

It's been six months since the Johnson & Johnson vaccine received emergency use authorization. What does the data show about its efficacy, side effects and protection from variants?

The US public and even some health experts may have underestimated the Covid-19 vaccine made by Janssen, a division of Johnson & Johnson, new data shows. And there’s emerging evidence that it ...

Can you mix and match booster doses for kids? It depends on how old your child is and which vaccine they received as their primary series. Children ages 12 to 17 who were vaccinated with either ...

Booster doses of Johnson & Johnson's one-shot coronavirus vaccine generated a big spike in antibodies, the frontline immune system defenses against infection, the company reported Wednesday.

In the U.S., the Johnson & Johnson vaccine is no longer available. Individuals 18 and older who received a Johnson & Johnson vaccine should receive either a bivalent Moderna or Pfizer-BioNTech dose.

As residents prepare to roll up their sleeves for a third, fourth or even fifth dose of COVID-19 vaccine, some may be wondering: Do I need to stick with the same brand, or is it safe to mix it up ...

Jatniel Hernandez fills syringes with COVID-19 vaccine booster shots at a vaccination clinic in San Rafael, California, on April 6, 2022. A new round of vaccine boosters was approved on September ...

A CDC advisory committee voted to recommend the updated COVID-19 vaccines for all Americans 6 months of age and older. The FDA has approved the new vaccines this week.