Johnson & Johnson has agreed to work with a German scientist studying rare blood clots linked to its vaccine for the CCP virus, which causes the disease COVID-19. Andreas Greinacher, a transfusion medicine expert at Greifswald University, was already studying blood clots in patients who received the AstraZeneca CCP (Chinese Communist Party) virus vaccine. Johnson & Johnson agreed to cooperate with Greinacher after blood clots emerged in patients who received the Johnson & Johnson vaccine. The European Medicines Agency (EMA) said earlier in the day that it would add a label to the Johnson and Johnson vaccine warning of unusual blood clots. AstraZeneca’s vaccines carry a similar warning. Both Greinacher and the EMA believe that the benefits of the vaccine outweigh the risk of blood clots. Greinacher’s team had analyzed specimens from the people who suffered clots since mid-March. He released a paper on Tuesday offering a theory for why the clotting side effect emerged. …