Adults 18-64*

Asthma

5.7 times greater risk

Chronic lung disease

22.6 times greater risk

Chronic heart disease

7.9 times greater risk

Diabetes

5.3 times greater risk

Taking certain medicines that suppress the immune system

17.3 times greater risk

Chronic kidney failure

29.9 times greater risk

Non-functioning spleen (asplenia)

48.9 times greater risk

HIV

15.2 times greater risk

_{*Compared to healthy adults in the same age range.}