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 and objective: The communicable nature of many infectious diseases, including SARS-CoV-2, creates challenges for implementing and obtaining regulatory-compliant written informed consent. The goal of this project was to identify and evaluate processes that address these barriers while maintaining clinical and research staff safety. Methods: We reviewed Federal Drug Administration (FDA), World Health Organization (WHO), and VA Office of Research and Development (ORD) guidance about informed consent during the COVID-19 pandemic, and identified and pilot-tested several mechanisms for obtaining regulatory-compliant consent during our COVID-19 therapeutics clinical trial. Results: Several processes were identified. These included a standard face-to-face consent with a plan for maintaining a paper copy of the signed consent form, a phone or video chat consent process that included taking a picture of the signed consent form or a screen shot of the signed document during a video chat, integration of the consent forms into software embedded within the electronic health record, and secure software programs with electronic signature. These processes are FDA-compliant but time-intensive, often requiring four or more hours of coordination between the clinical team, research staff, patients, and legally authorized representatives. Conclusions: Future studies could evaluate how to improve efficiency, and whether some elements of the consenting process, such as the requirement for documented written signed consent, rather than a witnessed oral consent, is an acceptable standard for research participants with communicable diseases.
["Prevention"]