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AstraZeneca’s Covid Vaccine May Have Posed a Higher Heart Risk for Young Women, Study Shows

The C.D.C. recommends that other vaccines be preferred over J.&J.

A C.D.C. panel weighs the risks of blood clots linked to the J.&J. vaccine.

One Dose of J.&J. Vaccine Is Ineffective Against Delta, Study Suggests

AstraZeneca Vaccine Carries Slightly Higher Risk of Bleeding Disorders, Study Shows

A Vaccine Side Effect Leaves Women Wondering: Why Isn’t the Pill Safer?

J.&.J. Vaccine Will Be Available Again Soon

A C.D.C. panel recommends J.&J. shots restart with a label noting the risk of very rare blood clots.

A new study hints at a reason the J.&J. and AstraZeneca vaccines may cause blood clots in rare cases.

A C.D.C. panel will meet today on the Johnson & Johnson vaccine pause.

Can Covid Research Help Solve the Mysteries of Other Viruses?

‘We Were Flying Blind’: A Dr.’s Account of a Woman’s J.&J. Vaccine-Related Blood Clot Case

C.D.C. Panel Keeps Pause on Use of J&J Vaccine, Citing Need to Assess Potential Risks

How Worried Should You Be About the J&J Vaccine and Blood Clots?

AstraZeneca Vaccine and Blood Clots: What Is Known So Far

Should You Be Concerned About Blood Clots, Bleeding and the AZ-Vaccine?

Should You Be Concerned About Blood Clots, Bleeding and the AZ-Vaccine?

Trial of High-Dose Blood Thinners in I.C.U. Patients Is Halted

Here’s How Strokes Happen When You’re as Young as Luke Perry

Luke Perry Died of a Stroke. Here’s How That Happens to Someone His Age.