A worker sprays pesticide as part of the fight against dengue fever outside the Esplanade arts center in Singapore on May 20, 2020. (Photo by Then Chih Wey/Xinhua)
A worker sprays pesticide as part of the fight against dengue fever outside the Esplanade arts center in Singapore on May 20, 2020. (Photo by Then Chih Wey/Xinhua)
Workers spray pesticide as part of the fight against dengue fever outside the Esplanade arts center in Singapore on May 20, 2020. (Photo by Then Chih Wey/Xinhua)