WASHINGTON - On Tuesday, U.S. officials recommended a "pause" on the use of the Johnson & Johnson COVID-19 vaccine in order to investigate U.S. reports of a rare type of blood clot following ...

Two reports released Thursday show that people who get booster doses of Johnson & Johnson's Janssen vaccine are well protected against severe disease and hospitalization from the Omicron variant of ...

AMSTERDAM (AP) — The European Medicines Agency on Thursday gave the green light to Johnson & Johnson’s one-dose coronavirus vaccine, handing the European Union’s 27 nations a fourth vaccine to try to ...

The U.S. Food and Drug Administration announced on Thursday that it was limiting the authorized use of the Johnson & Johnson COVID-19 vaccine for adults due to studies showing people developing rare ...

The vaccines work differently. The mRNA vaccines deliver blueprints, essentially, that train your body trains to fight that particular infection and any similar infection down the road.

Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. Use of mRNA COVID-19 vaccines should be considered as the preferable option in the US rather than ...