A booster dose of Johnson & Johnson’s single-shot COVID-19 vaccine sharply increased the levels of antibodies, the company said on Wednesday.. People who received a second dose of the J&J ...

The findings could help inform the U.S. government's recommendations about booster shots for the 14 million people who received the single-shot Johnson & Johnson vaccine.

Two J&J shots, given two months apart, resulted in 94% protection against any symptomatic infection in the U.S., and 100% against severe disease.

With the delta variant of COVID-19 overwhelming hospitals across the country, government health officials have recommended a booster shot of Moderna or Pfizer vaccine – but what about Americans ...

Anyone ages 18 and older who received their Johnson & Johnson (J&J) COVID shot at least 2 months ago is eligible to receive a J&J booster shot, according to the Centers for Disease Control and ...

Adding to the complexity is whether it’s OK to use a booster that’s a different brand than someone’s initial shots. Preliminary results of a U.S. government study suggest that mixing and ...

Suzie Glassman, 44, is a freelance writer and fitness coach based in Castle Rock, Colorado. In April, she got the Johnson & Johnson vaccine; in October, she got the Moderna booster shot. After the ...

The U.S. Food and Drug Administration (FDA) on Wednesday announced it had authorized a booster dose of the Pfizer-BioNTech COVID vaccine for certain adults in the U.S. It means an increased number ...

Johnson & Johnson said that when it gave study participants a second jab after six months, their antibody levels were nine times higher than they were 28 days after a first dose of the COVID vaccine.

Two J&J shots, given two months apart, resulted in 94% protection against any symptomatic infection in the U.S., and 100% against severe disease.

With the delta variant of COVID-19 overwhelming hospitals across the country, government health officials have recommended a booster shot of Moderna or Pfizer vaccine – but what about Americans ...