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Figure Initial radiograph of the patient

On Jan 13, 2020, a 32-year-old man, a Nepalese student at Wuhan University of Technology, Wuhan, China, with no history of comorbidities, returned to Nepal. He presented at the outpatient department of Sukraraj Tropical and Infectious Disease Hospital, Kathmandu, with a cough. He had become ill on Jan 3, 6 days before he flew to Nepal. He indicated no exposure to the so-called wet market in Wuhan. Throat swabs obtained from the patient tested positive for 2019-nCoV on real-time RT-PCR assays at the WHO laboratory in Hong Kong. On admission to hospital in Kathmandu, his temperature was 37·2°C (99°F), with throat congestion, but with no other relevant signs or symptoms. He was isolated and treated with broad-spectrum antibiotics and supportive therapies. After 6 h, he complained of mild breathing difficulty and had decreased oxygen saturation (SpO87% on room air). Chest radiographs obtained on admission showed an infiltrate in the upper lobe of the left lung ( figure ). On Jan 14, his temperature rose to 38·9°C (102°F) and the next day he had breathing difficulties while in the supine position, with crepitations in the right lower lung field. His fever was no longer present on Jan 16, and his clinical condition improved. He was discharged the next day and instructed to self-quarantine at home. Laboratory tests showed no abnormalities. Real-time RT-PCR assays for influenza A and B viruses, and NS1 antigen rapid tests for dengue viruses, scrub typhus, and Brucella spp were negative. Follow-up assessments on Jan 29 and Jan 31 gave an RT-PCR negative throat swab for 2019-nCoV. Informed consent was obtained from the patient to be included in this Correspondence.