inclusion criteria: * positive result in the quantitative real-time pcr (qpcr) test for sars-cov-2 in the respiratory tract; * pneumonia confirmed by chest imaging and 1. respiratory rate ≥ 24 irpm (for adults) or 2. o2 saturation \<93% or 3. no improvement in o2 saturation, despite oxygen supply or 4. arterial hypotension; or 5. changes in capillary filling time; or 6. changes in the level of consciousness; or 7. oliguria; important: the presence of increased respiratory rate or desaturation (items "a" and "b") are criteria for hospital admission. items "c" to "g" are considered criteria for icu admission following the recommendations of the são paulo state health secretariat, resolution ss-28 of 03-mar-2020, prepared by the hospital das clínicas of medical school-usp.

inclusion criteria: * positive result in the quantitative real-time pcr (qpcr) test for sars-cov-2 in the respiratory tract; * pneumonia confirmed by chest imaging and 1. respiratory rate ≥ 24 irpm (for adults) or 2. o2 saturation \<93% or 3. no improvement in o2 saturation, despite oxygen supply or 4. arterial hypotension; or 5. changes in capillary filling time; or 6. changes in the level of consciousness; or 7. oliguria; important: the presence of increased respiratory rate or desaturation (items "a" and "b") are criteria for hospital admission. items "c" to "g" are considered criteria for icu admission following the recommendations of the são paulo state health secretariat, resolution ss-28 of 03-mar-2020, prepared by the hospital das clínicas of medical school-usp.

inclusion criteria: positive result in the quantitative real-time pcr (qpcr) test for sars-cov-2 in the respiratory tract; pneumonia confirmed by chest imaging and respiratory rate ≥ 24 irpm (for adults) or o2 saturation <93% or no improvement in o2 saturation, despite oxygen supply or arterial hypotension; or changes in capillary filling time; or changes in the level of consciousness; or oliguria; important: the presence of increased respiratory rate or desaturation (items "a" and "b") are criteria for hospital admission. items "c" to "g" are considered criteria for icu admission following the recommendations of the são paulo state health secretariat, resolution ss-28 of 03-mar-2020, prepared by the hospital das clínicas of medical school-usp.

inclusion criteria: positive result in the quantitative real-time pcr (qpcr) test for sars-cov-2 in the respiratory tract; pneumonia confirmed by chest imaging and respiratory rate ≥ 24 irpm (for adults) or o2 saturation <93% or no improvement in o2 saturation, despite oxygen supply or arterial hypotension; or changes in capillary filling time; or changes in the level of consciousness; or oliguria; important: the presence of increased respiratory rate or desaturation (items "a" and "b") are criteria for hospital admission. items "c" to "g" are considered criteria for icu admission following the recommendations of the são paulo state health secretariat, resolution ss-28 of 03-mar-2020, prepared by the hospital das clínicas of medical school-usp.

inclusion criteria: - positive result in the quantitative real-time pcr (qpcr) test for sars-cov-2 in the respiratory tract; - pneumonia confirmed by chest imaging and 1. respiratory rate ≥ 24 irpm (for adults) or 2. o2 saturation <93% or 3. no improvement in o2 saturation, despite oxygen supply or 4. arterial hypotension; or 5. changes in capillary filling time; or 6. changes in the level of consciousness; or 7. oliguria; important: the presence of increased respiratory rate or desaturation (items "a" and "b") are criteria for hospital admission. items "c" to "g" are considered criteria for icu admission following the recommendations of the são paulo state health secretariat, resolution ss-28 of 03-mar-2020, prepared by the hospital das clínicas of medical school-usp.

inclusion criteria: - positive result in the quantitative real-time pcr (qpcr) test for sars-cov-2 in the respiratory tract; - pneumonia confirmed by chest imaging and 1. respiratory rate ≥ 24 irpm (for adults) or 2. o2 saturation <93% or 3. no improvement in o2 saturation, despite oxygen supply or 4. arterial hypotension; or 5. changes in capillary filling time; or 6. changes in the level of consciousness; or 7. oliguria; important: the presence of increased respiratory rate or desaturation (items "a" and "b") are criteria for hospital admission. items "c" to "g" are considered criteria for icu admission following the recommendations of the são paulo state health secretariat, resolution ss-28 of 03-mar-2020, prepared by the hospital das clínicas of medical school-usp.