You are presented with a paragraph from a COVID-19 literature. Classify the topics of this piece of text by choosing from the following categories:

- Epidemic Forecasting: The content relates to predictions about the spread of COVID-19.
- Treatment: The paragraph discusses therapeutic methods or medication for COVID-19.
- Prevention: The content covers measures to prevent the spread of COVID-19.
- Mechanism: The paragraph explains the biological mechanisms of the virus.
- Case Report: The content is a report of a COVID-19 case.
- Transmission: The paragraph discusses how COVID-19 is transmitted.
- Diagnosis: The content is about diagnosing COVID-19 in individuals.

Your classification should be provided as an element within a JSON array. The array should be formatted with topics enclosed in double quotes and separated by commas, following the JSON format, for example: ["Topic1", "Topic2", ...]. Include all applicable topics within the array. Your output should be a valid JSON array, and no additional text should be included in your response.

Article:

A female nurse in her 40s caring for a patient with severe coronavirus disease 2019 (COVID-19) pneumonia treated with a high-flow nasal cannula (HFNC) presented with fever, cough and dyspnoea. Based on imaging findings and a positive reverse transcription-polymerase chain reaction (RT-PCR) for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), COVID-19 pneumonia was diagnosed, although her cohabiting family had similar symptoms and their RT-PCR tests were negative. Laboratory results showed Mycoplasma antigen (+). She was started on ciclesonide 1200 mug/day and favipiravir (3600 mg/day on the first day and 1600 mg/day from Day 2). As Mycoplasma antigen was positive on admission and her family had similar symptoms, levofloxacin 500 mg/day was started. The patient recovered and was discharged on Day 10. The patient did not have Mycoplasma infection because the Mycoplasma antibody measured by particle agglutination (PA) method was increased only up to 80 times after 4 weeks. This case highlights that healthcare workers wearing full personal protective equipment can nevertheless acquire COVID-19 from patients treated with HFNCs.
["Case Report"]