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

A panel of experts advising the Centers for Disease Control and Prevention is discussing rare blood clots that health officials have investigated in Johnson & Johnson coronavirus vaccine recipients.A panel of experts advising the Centers for Disease Control and Prevention is discussing rare blood clots that health officials have investigated in Johnson & Johnson coronavirus vaccine recipients.internal-essential, Vaccination and Immunization, Blood Clots, Coronavirus (2019-nCoV), AstraZeneca PLCRead More