Tag: Dhaka Courier

Climate Change-Caused Mosquito-Borne Diseases in Bangladesh

Temperature and Mosquito Activity: Temperature plays a pivotal role in the life cycle and behavior of mosquitoes. Warmer temperatures can accelerate mosquito development, shorten the incubation period of pathogens within mosquitoes, and increase mosquito biting rates. In Bangladesh, rising temperatures have created favorable conditions for mosquito breeding and disease transmission. Bangladesh has experienced an average rise in temperature of 0.5°C between 1976 and 2019. This warming trend has contributed to the expansion of mosquito habitats, thereby increasing the risk of mosquito-borne diseases. In the recent time Dengue is likely to increase for Dhaka as the climatic conditions become more suitable. Humidity in the range of 60 to 80 percent, maximum temperature between 25°C and 35°C, and rainfall between 200-800 mm create ideal conditions for mosquitoes. Weather data between 1976 and 2022 indicate Dhaka is experiencing falling humidity levels, rising temperatures, and heavier summer rainfall. These together with factors like urbanization are increasing the risk of the spread of dengue in Dhaka city.