13. Chronic Kidney or Liver Disease
The kidneys and liver help to filter toxins out of the body. People with chronic kidney or liver disease may have difficulty filtering out the unhealthy particles generated from the virus. People who have had kidney transplants are most susceptible because they also have a weakened immune system.
12. Blood Disorders
People who have blood disorders may have a difficult time fighting off the coronavirus. COVID-19 may affect the blood due to the formation of blood clots and reduced oxygen.
The following diseases are examples of blood disorders:
- Sickle cell disease (SCD)
Although cancer can weaken the immune system, the treatments used for cancer may also become risk factors for severe illness.