People who have been prescribed any one of a series of heavy-duty medications, including some used for chemotherapy (cyclophophamide), cancer care (alemtuzumab), anti-organ rejection (mycophenolate), immune system suppression (calcineurin inhibitors and/or chronic dose prednisone, over 20 milligrams a day), rheumatoid arthritis (Janus kinase inhibitors) and others, can also qualify for a second dose appointment. People who have received an organ transplant, who are waiting for an organ transplant, who are receiving stem cell transplants and who are receiving dialysis are also eligible for a second dose as of May 21. Dr. Joss Reimer, medical lead of Manitoba’s Vaccine Implementation Task Force, said priorities for second doses are aimed at people who already have health issues often made worse or made deadly when COVID-19 enters the fray.