Adults 65+*

Asthma

4.9 times greater risk

Chronic lung disease

9.2 times greater risk

Chronic heart disease

4.4 times greater risk

Diabetes

3.3 times greater risk

Taking certain medicines that suppress the immune system

6.6 times greater risk

Chronic kidney failure

9.4 times greater risk

Non-functioning spleen (asplenia)

13.6 times greater risk

HIV

4.1 times greater risk

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