amoxicillin; azithromycin; clavulanic acid; drotaverine; lopinavir plus ritonavir; ribavirin; antivirus agent; abdominal pain; aged; antiviral therapy; backache; case report; clinical article; computer assisted tomography; coronavirus disease 2019; coughing; deterioration; diarrhea; drug withdrawal; dyspnea; female; gastrointestinal symptom; human; loss of appetite; mixed infection; nausea; nose smear; Note; oxygen saturation; oxygen therapy; pneumonia; severe acute respiratory syndrome; Severe acute respiratory syndrome coronavirus 2; thorax radiography; throat culture; vomiting; abdomen; abdominal pain; Betacoronavirus; complication; Coronavirus infection; diagnostic imaging; diarrhea; fever; inflammation; Italy; laboratory technique; lung; nausea; pandemic; Poland; travel; virus pneumonia; x-ray computed tomography; Abdomen; Abdominal Pain; Aged; Antiviral Agents; Betacoronavirus; Clinical Laboratory Techniques; Coronavirus Infections; Diarrhea; Female; Fever; Humans; Inflammation; Italy; Lung; Nausea; Pandemics; Pneumonia, Viral; Poland; Radiography, Thoracic; Tomography, X-Ray Computed; Travel