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: Managing obstetric emergencies in COVID-19 pandemic is a real challenge as these patients need timely intervention to save the life of the mother and the baby. Hence, to avoid life-threatening challenges, all pregnant patients were electively admitted and tested for COVID-19 near term to anticipate the difficulties and prevent complications. Aim: Our aim was to assess the impact of COVID-19 infection on maternal morbidity and mortality as well as the effect on the neonate under spinal anesthesia. Settings and Design: This was a prospective observational study. Materials and Methods: One hundred and fifteen COVID-19-positive pregnant patients in the age group of 20-40 years from July 2020 to December 2020 were electively taken for cesarean section under spinal anesthesia. Patients who needed emergency cesarean delivery were excluded from the study. Emergency cesarean delivery was avoided to reduce the risk of aerosol generation under general anesthesia as endotracheal intubation of COVID-19 patients poses a significant risk of viral exposure to doctors and staff. Written informed consent was obtained from all patients. Spinal anesthesia was given at L4-L5 intervertebral space. Demographic parameters, anesthetic and surgical parameters, and neonatal parameters were observed. Any inadvertent event was noted. Statistical Analysis: Data were expressed as mean, median, percentage, or number. Results: All pregnancies were singleton. None of the patients was converted to general anesthesia. One hundred and ten were either mildly symptomatic or asymptomatic. Five of our patients had severe symptoms and needed intensive care unit care preoperatively and postoperatively. Seven patients developed spinal hypotension and were managed by vasopressors. No significant thrombocytopenia was noted in any of our patients. None of our patients developed symptomatic thromboembolism. Vertical transmission was not reported in any of the cases. All babies were born with weight >2500 g and good APGAR score. Conclusion: Spinal anesthesia for LSCS is safe and effective for obstetric anesthesia in COVID-19 both for the parturient and the newborn.
["Prevention", "Treatment"]