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COVID-19: Who's at higher risk of serious symptoms?

Weakened immune system

A healthy immune system fights the germs that cause disease. But many conditions and treatments can weaken your immune system, including:

  • Organ transplants
  • Cancer treatments
  • Bone marrow transplant
  • HIV/AIDS
  • Long-term use of prednisone or similar drugs that weaken your immune system

If you have a weakened immune system, you may need to take extra precautions to avoid the virus that causes COVID-19. Routine doctor appointments may be delayed or happen via phone or video conference. You may want to have your medications mailed to you, so you don't have to go to the pharmacy.