inclusion criteria: 1. age 18 years or older 2. hospitalization with a suspected diagnosis of covid-19, based on: (a) a compatible clinical presentation with a positive laboratory test for sars-cov-2, or (b) considered by the primary team to be a person under investigation due to undergo testing for covid-19 in addition to compatible pulmonary infiltrates on chest x-ray (mutilobar, intersticial or ground glass opacities). 3. use of acei or arb as an outpatient prior to hospital admission.

inclusion criteria: 1. age 18 years or older 2. hospitalization with a suspected diagnosis of covid-19, based on: (a) a compatible clinical presentation with a positive laboratory test for sars-cov-2, or (b) considered by the primary team to be a person under investigation due to undergo testing for covid-19 in addition to compatible pulmonary infiltrates on chest x-ray (mutilobar, intersticial or ground glass opacities). 3. use of acei or arb as an outpatient prior to hospital admission.

inclusion criteria: age 18 years or older hospitalization with a suspected diagnosis of covid-19, based on: (a) a compatible clinical presentation with a positive laboratory test for sars-cov-2, or (b) considered by the primary team to be a person under investigation due to undergo testing for covid-19 in addition to compatible pulmonary infiltrates on chest x-ray (mutilobar, intersticial or ground glass opacities). use of acei or arb as an outpatient prior to hospital admission.

inclusion criteria: age 18 years or older hospitalization with a suspected diagnosis of covid-19, based on: (a) a compatible clinical presentation with a positive laboratory test for sars-cov-2, or (b) considered by the primary team to be a person under investigation due to undergo testing for covid-19 in addition to compatible pulmonary infiltrates on chest x-ray (mutilobar, intersticial or ground glass opacities). use of acei or arb as an outpatient prior to hospital admission.

inclusion criteria: 1. age 18 years or older 2. hospitalization with a suspected diagnosis of covid-19, based on: (a) a compatible clinical presentation with a positive laboratory test for sars-cov-2, or (b) considered by the primary team to be a person under investigation due to undergo testing for covid-19 in addition to compatible pulmonary infiltrates on chest x-ray (mutilobar, intersticial or ground glass opacities). 3. use of acei or arb as an outpatient prior to hospital admission.

inclusion criteria: 1. age 18 years or older 2. hospitalization with a suspected diagnosis of covid-19, based on: (a) a compatible clinical presentation with a positive laboratory test for sars-cov-2, or (b) considered by the primary team to be a person under investigation due to undergo testing for covid-19 in addition to compatible pulmonary infiltrates on chest x-ray (mutilobar, intersticial or ground glass opacities). 3. use of acei or arb as an outpatient prior to hospital admission.