 Methods: Lower case-fatality ratio ( CFR, the proportion of deaths among all detected COVID-19 cases ) corresponds to higher detectability of the SARS-COV-2 infection .
<clarity>  Methods: Lower case-fatality ratio ( CFR, the proportion of deaths among all detected COVID-19 cases ) corresponds to higher detectability of the SARS-COV-2 infection .
 Methods: Lower case-fatality ratio ( CFR, the proportion of detected COVID-19 cases ) corresponds to higher detectability of the SARS-COV-2 infection .