" In 2012, 60% of older (65+) adults managed 2 or more chronic conditions.
Common chronic conditions include:
Heart Disease
Cancer
Chronic bronchitis or emphysema
Stroke
Diabetes mellitus
Alzheimer's disease
Chronic conditions can lower quality of life for older adults and contribute to the leading causes of death among this population."
https://www.healthypeople.gov/2020/topics-objectives/topic/older-adultsThe above did not mention three other very common additional factors mentioned lately, high blood pressure, obesity, and smoking.
Means to me, a rather high majority of those over 65 are at substantial risk in this pandemic.