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:

The severe acute respiratory syndrome coronavirus (SARS-CoV-2) pandemic has disrupted normal health care utilization patterns worldwide, including decreasing emergency department (ED) visits for various medical emergencies. We examined whether this pattern was present in febrile pediatric oncology patients. In this single-center cohort study, we conducted a retrospective chart review of ED visits of febrile pediatric oncology patients during the first 4 months of the global SARS-CoV-2 pandemic and compared those data to the same time periods in the previous 2 years. During the first 5 months of the pandemic, 25 pediatric oncology patients with fever visited our ED; 65 children visited during the same time period in 2018; and 60 visited in 2019. Compared with 2018 and 2019, encounters for 2020 were decreased by 62% and 58%, respectively. A significantly higher percentage of febrile pediatric oncology patients (84%) were admitted to our hospital during the pandemic compared the previous years (58%). Of concern is the possibility that fear of exposure to coronavirus disease-19 (COVID-19) at our health care facility prompted caregivers of pediatric oncology patients to avoid seeking care for their child with fever. Consistent communication with families about the life-threatening nature of fever should be prioritized among pediatric oncology providers.
["Prevention"]