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:

Objectives: The current study aimed at assessing the impact of COVID-19 on pharmaceutical care services and the role of community pharmacists. Methods: A cross-sectional study was conducted from May 1st to June 7, 2020, on community pharmacies in Bahir Dar and Gondar cities, Ethiopia. Descriptive statistics and Chi-square test were conducted. A P-value of less than 0.05 was considered to declare statistical significance at a 95% Confidence interval (CI). Results: A total of 101 community pharmacies were approached (one pharmacist per pharmacy), and 80 of them had completed the survey. From the total pharmacies, 78.8% of them had encountered a shortage of pharmaceutical products. Chi-square test revealed that there was a significant difference (P = 0.036) in the shortage of personal protection equipment between Gondar and Bahir Dar cities. Face mask 55 (77.4%) followed by hand glove 15 (21.1%) were the most commonly reported personal protective equipment's in short supply. Conclusion: Strategies should be in place to improve the availability and affordability of various essential pharmaceuticals to mitigate the spread of the disease and prevent other complications.
["Prevention"]