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US weighs next steps for J&J virus shot amid clot mystery

U.S. health officials are weighing next steps as they investigate a handful of unusual blood clots in people who received Johnson & Johnson’s COVID-19 vaccine — a one-dose shot that many countries...

EXPLAINER: What's known about COVID vaccines and rare clots

A rare, rogue immune response is the main suspect as authorities investigate highly unusual blood clots following use of two similar COVID-19 vaccines from Johnson & Johnson and AstraZeneca. ...

Tweaked COVID vaccines in testing aim to fend off variants

Dozens of Americans are rolling up their sleeves for a third dose of COVID-19 vaccine -- this time, shots tweaked to guard against a worrisome mutated version of the virus. Make no m...

Are some COVID-19 vaccines more effective than others?

Are some COVID-19 vaccines more effective than others? It’s hard to tell since they weren’t directly compared in studies. But experts say the vaccines are alike on what matters most:...

Pfizer says its COVID-19 vaccine protects younger teens

Pfizer announced Wednesday that its COVID-19 vaccine is safe and strongly protective in kids as young as 12, a step toward possibly beginning shots in this age group before they head back to school in...

Shots in little arms: COVID-19 vaccine testing turns to kids

The 9-year-old twins didn’t flinch as each received test doses of Pfizer’s COVID-19 vaccine -- and then a sparkly bandage to cover the spot. “Sparkles make everything better,” decla...

AstraZeneca confirms strong vaccine protection after US rift

AstraZeneca insisted Wednesday that its COVID-19 vaccine is strongly effective even after counting additional illnesses in its disputed U.S. study, the latest in an extraordinary public rift with Amer...

Reputation of AstraZeneca's COVID vaccine marred by missteps

LONDON (AP) — AstraZeneca's release Monday of encouraging data about its coronavirus vaccine from its U.S. trial raised hopes that the drug company could bury doubts about the shot and put a troubled ...

How well do COVID vaccines protect after organ transplant?

A new study raised questions about how well COVID-19 vaccines protect organ transplant recipients — and what precautions people with suppressed immune systems should take after the shots. ...

Tussle between US, allies over vaccine supply escalates

BRUSSELS (AP) — Millions of coronavirus vaccine doses are in cold storage in the U.S. that can’t be injected in the states because they are not yet approved by the Food and Drug Administration, but th...

AP-NORC poll: 1 in 5 in US lost someone close in pandemic

WASHINGTON (AP) — About 1 in 5 Americans say they lost a relative or close friend to the coronavirus, highlighting the division between heartache and hope as the country itches to get back to normal a...

Swelling after COVID-19 shots may cause cancer false alarms

Getting a mammogram or other cancer check soon after a COVID-19 vaccination? Be sure to tell the doctor about the shot to avoid false alarm over a temporary side effect. That's the a...

Biden vows enough vaccine for all US adults by end of May

WASHINGTON (AP) — President Joe Biden said the U.S. expects to take delivery of enough coronavirus vaccine for all adults by the end of May — two months earlier than anticipated — and he pushed states...

J&J’s 1-dose shot cleared, giving US 3rd COVID-19 vaccine

WASHINGTON (AP) — The U.S. is getting a third vaccine to prevent COVID-19, as the Food and Drug Administration on Saturday cleared a Johnson & Johnson shot that works with just one dose instead of...

Third US vaccine could raise question: Which shots are best?

WASHINGTON (AP) — The nation is poised to get a third vaccine against COVID-19, but because at first glance the Johnson & Johnson shot may not be seen as equal to other options, health officials a...