Task: Explanation
Input (English): Paragraph: The Sao Paulo state Environmental Secretary says the virus that killed a monkey was an isolated case and the transmission risk was low. The virus has not been detected in the area occupied by the two parks. Both have been closed since Jan. 23 and were reopened on Thursday. A total of 29 other parks in the city of Sao Paulo remain closed as a preventive measure. On Wednesday, the Health Ministry said that 900 cases of yellow fever were reported since July 2017 nationwide and 300 people have died from the disease. During the same period last year, 610 cases and 196 deaths were reported. Claim: Sao Paulo zoo reopens after yellow fever scare.
Output (English): Brazilian officials have reopened Sao Paulo’s zoo and botanical gardens after a monkey was killed by the yellow fever virus.