What are the CDC estimates of coronavirus disease 2019 (COVID-19) epidemiology parameters?
Parameters include • Median number of days from symptom onset to SARS-CoV-2 test among SARS-CoV-2–positive patients • Median number of days from symptom onset to hospitalization • Median number of days of hospitalization among those not admitted to the intensive care unit (ICU) • Median number of days of hospitalization among those admitted to the ICU • Percentage of patients admitted to the ICU among those hospitalized • Percentage of patients on mechanical ventilation among those hospitalized (includes both non-ICU and ICU admissions) • Percentage of patients who die among those hospitalized (includes both non-ICU and ICU admissions) • Median number of days on mechanical ventilation • Median number of days from symptom onset to death (for patients who die) • Median number of days from death to reporting of that death • Level of pre-existing immunity to COVID-19 in the community • Ratio of estimated infections to reported case counts • Time from exposure to symptom onset • Time from symptom onset in an individual and symptom onset of a second person infected by that individual