Transplant recipients are rejecting their new organ after receiving a vaccination against Covid-19, adding an additional challenge for the vaccinated population, according to the new study published in the Journal of Clinical Medicine. A group of 18 health experts and researchers from Japan conducted a study to systematically evaluate and characterise the currently reported cases of acute corneal graft rejection after being injected with a Covid “vaccine.” A rejection graft occurs when the recipient’s immune system rejects tissue from a donor, in this case, the cornea. Allograft is the transplant of an organ or tissue from one individual to another...