Cohort 1 Household contacts: Percentage of HH members that get infected with SARS-CoV-2 [Time frame 14 days];Cohort 1 Index Case: Percentage of patients with COVID-19 associated mild disease/moderate pneumonia progressing to severe pneumonia [Time frame 14 days];Cohort 2: Percentage of COVID-19 associated severe pneumonia patients worsening their condition [Time frame at discharge or day 28 (whichever is first)]

Cohort 1 Household contacts: Percentage of HH members that get infected with SARS-CoV-2 [Time frame 14 days];Cohort 1 Index Case: Percentage of patients with COVID-19 associated mild disease/moderate pneumonia progressing to severe pneumonia [Time frame 14 days];Cohort 2: Percentage of COVID-19 associated severe pneumonia patients worsening their condition [Time frame at discharge or day 28 (whichever is first)]

Cohort 1 Index Case: Percentage of patients with COVID-19 associated mild disease/moderate pneumonia progressing to severe pneumonia [Time frame 14 days];Cohort 2: Percentage of COVID-19 associated severe pneumonia patients worsening their condition [Time frame at discharge or day 28 (whichever is first)];Death during hospitalization [Time frame time of death];Household contacts: Percentage of HH members that get infected with SARS-CoV-2 [Time frame 14 days]

Cohort 1 Index Case: Percentage of patients with COVID-19 associated mild disease/moderate pneumonia progressing to severe pneumonia [Time frame 14 days];Cohort 2: Percentage of COVID-19 associated severe pneumonia patients worsening their condition [Time frame at discharge or day 28 (whichever is first)];Death during hospitalization [Time frame time of death];Household contacts: Percentage of HH members that get infected with SARS-CoV-2 [Time frame 14 days]