Risk factors for severe COVID-19 illness
| Age > 65, or age > 50 and not vaccinated |
| Chronic lung disease (chronic obstructive pulmonary disease, asthma, interstitial lung disease, pulmonary hypertension, bronchiectasis) |
| Cardiovascular disease (heart failure, coronary artery disease, or cardiomyopathy) |
| Type 2 diabetes |
| Obesity (body mass index > 30 kg/m2) |
| Sickle cell disease |
| Chronic kidney disease |
| Primary immunodeficiency or immunocompromised state from solid-organ transplantation |
| Cancer |
Based on information in reference 2.