May 13, 2020
CDC (Centers for Disease Control & Prevention)
"... Comorbidities
Table 4 shows the types of health conditions and contributing causes mentioned in conjunction with deaths involving coronavirus disease 2019 (COVID-19). For 7% of the deaths, COVID-19 was the only cause mentioned. For deaths with conditions or causes in addition to COVID-19, on average, there were 2.5 additional conditions or causes per death."
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at risk populations,COVID-19,deaths,pre-existing conditions risk factor,risk factors