BRIEF-J&J Says No Clear Causal Relationship Established Between Rare Blood Clot Events And Its COVID-19 Vaccine By Reuters Staff April 9 (Reuters) - Johnson & Johnson: * J&J SAYS AWARE THAT THROMBOEMBOLIC EVENTS INCLUDING THOSE WITH THROMBOCYTOPENIA HAVE BEEN REPORTED WITH ALL COVID-19 VACCINES * J&J SAYS AT PRESENT, NO CLEAR CAUSAL RELATIONSHIP HAS BEEN ESTABLISHED BETWEEN THESE RARE EVENTS AND ITS COVID-19 VACCINE * J&J SAYS WORKING CLOSELY WITH EXPERTS AND REGULATORS TO ASSESS DATA ON BLOOD CLOTS AFTER ITS VACCINE Further company coverage: