inclusion criteria: * age ≥ 18 * covid-19 confirmed cases (either rt-pcr or ct scan confirmed) * at least one of the following: radiation contactless body temperature ≥37.5, cough, shortness of breath, nasal congestion/ discharge, myalgia/arthralgia, diarrhea/vomiting, headache or fatigue on admission. * time of onset of the symptoms should be acute (days ≤ 14) * news2 ≥ 1 on admission (national early warning score 2)

inclusion criteria: * age ≥ 18 * covid-19 confirmed cases (either rt-pcr or ct scan confirmed) * at least one of the following: radiation contactless body temperature ≥37.5, cough, shortness of breath, nasal congestion/ discharge, myalgia/arthralgia, diarrhea/vomiting, headache or fatigue on admission. * time of onset of the symptoms should be acute (days ≤ 14) * news2 ≥ 1 on admission (national early warning score 2)

inclusion criteria: - age ≥ 18 - covid-19 confirmed cases (either rt-pcr or ct scan confirmed) - at least one of the following: radiation contactless body temperature ≥37.5, cough, shortness of breath, nasal congestion/ discharge, myalgia/arthralgia, diarrhea/vomiting, headache or fatigue on admission. - time of onset of the symptoms should be acute (days ≤ 14) - news2 ≥ 1 on admission (national early warning score 2)

inclusion criteria: - age ≥ 18 - covid-19 confirmed cases (either rt-pcr or ct scan confirmed) - at least one of the following: radiation contactless body temperature ≥37.5, cough, shortness of breath, nasal congestion/ discharge, myalgia/arthralgia, diarrhea/vomiting, headache or fatigue on admission. - time of onset of the symptoms should be acute (days ≤ 14) - news2 ≥ 1 on admission (national early warning score 2)