The move comes after Europe's drug regulator earlier this month said it had found a possible link between AstraZeneca's COVID-19 vaccine and very rare blood clots in some adults who had received the shot. That's out of 34 million AstraZeneca vaccine doses administered in Britain and the European Economic Area over the past three months. In the United States, health officials said treatment of the blood clots with possible ties to the J&J vaccine differs from what might be considered standard in such situations. "Usually, an anticoagulant drug called heparin is used to treat blood clots," they said. Among possible causes being investigated are that the vaccine triggers an unusual antibody in rare cases.

Source: bd News24 April 13, 2021 15:54 UTC