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Heart problems following vaccination in the U.S. are uncommon and short-lived, researchers reported.

Heart Problems After Vaccination Are Very Rare, Federal Researchers Say

C.D.C. advisers are expected to discuss rare heart problems in vaccinated younger people.

The C.D.C. is investigating nearly 800 cases of rare heart problems following immunization.

C.D.C. Is Investigating a Heart Problem in a Few Young Vaccine Recipients

Can Covid Research Help Solve the Mysteries of Other Viruses?

Many Children With Serious Inflammatory Syndrome Had No Covid Symptoms

Many Children With Serious Inflammatory Syndrome Had No Covid Symptoms

Covid-Linked Syndrome in Children Is Growing and Cases Are More Severe

He Was Hospitalized for Covid-19. Then Hospitalized Again. And Again.

Covid Survivors With Long-Term Symptoms Need Urgent Attention, Experts Say

A Man Died After Eating a Bag of Black Licorice Every Day

A ‘Cure for Heart Disease’? A Single Shot Succeeds in Monkeys

‘Straight-Up Fire’ in His Veins: Teen Battles New Covid Syndrome

‘Straight-Up Fire’ in His Veins: Teen Battles New Covid Syndrome

Amid the Coronavirus Crisis, Heart and Stroke Patients Go Missing

A Heart Attack? No, It Was the Coronavirus

A Heart Attack? No, It Was the Coronavirus

That Perplexing Red Meat Controversy: 5 Things to Know

How Immunotherapy Might Be Used to Treat Heart Failure