Live Science Staff

The novel coronavirus causing COVID-19 seems to hit some people harder than others, with some people experiencing only mild symptoms and others being hospitalized and requiring ventilation. Though scientists at first thought age was the dominant factor, with young people avoiding the worst outcomes, new research has revealed a suite of features impacting disease severity. These influences could explain why some perfectly healthy 20-year-old with the disease is in dire straits, while an older 70-year-old dodges the need for critical interventions.

These risk factors include:
Age
Diabetes (type 1 and type 2)
Heart disease and hypertension
Smoking
Blood type
Obesity
Genetic factors

Age



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