The current SARS-CoV-2 pandemic has caused a huge global public health problem. The case of a young adult patient with laboratory confirmed SARS-CoV-2 is reported, which describes the identification, clinical course, diagnosis, treatment, including her rapid clinical deterioration with mild initial symptoms and subsequent progression to multilobar pneumonia requiring admission to the intensive care unit. This case highlights the importance of establishing a diagnosis based on the clinical findings and the patient's history, bearing in mind the possibility of gastrointestinal symptoms in addition to respiratory ones. Besides, the presence of risk factors should be investigated; in this case we proposed obesity as a possible risk factor. Furthermore, limitations in diagnostic tests and the possibility of co-infection with other respiratory pathogens are highlighted. The imaging, laboratory findings and treatment are described, taking into account the limited current evidence.