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:

BACKGROUND: Despite facial self-touching being a possible source of transmission of SARS-Co-V-2 its role in dental practice has not been studied. Factors such as anxiety symptoms or threat perception of COVID-19 may increase the possibility of contagion. The objective was to compare the impact of control measures, such as gloves or signs in the reduction in facial self-touching. METHODS: An intra-subject design was undertaken with 150 adults. The patients' movements in the waiting room were monitored with Microsoft Kinect software on three occasions: without any control measures, using plastic gloves or using advisory signs against self-touching. Additionally, the participants completed the sub-scale of STAI (State-Anxiety) and the BIP-Q5 (Brief Illness Perception Questionnaire); their blood pressure and heart rate were recorded. RESULTS: The lowest incidence of facial self-touching occurred in the experimental situation in which gloves were introduced. The subjects with elevated anxiety symptoms realized more facial self-touching regardless of the control measures. However, the threat perception of COVID-19 is associated negatively with facial self-touching. CONCLUSIONS: The use of gloves is a useful control measure in the reduction in facial touching. However, people with anxiety symptoms regardless of whether they have greater threat perception for COVID-19 exhibit more facial touching.
["Prevention"]