A worker sprays anti-mosquito fog in an attempt to control dengue fever in Dhaka, Bangladesh, on Aug. 18, 2019. The Bangladeshi government Sunday raised the probable dengue death toll to 70 in the country so far this fever season and has asked state agencies for more coordinated efforts to rein in the outbreak of the disease which is transmitted by several species of mosquito within the genus Aedes. (Str/Xinhua)