Dengue incidence is projected to increase to 16,000 cases per year by 2100 in Dhaka, Bangladesh, if ambient temperatures increase by 3.3ºC without any adaptation measures or changes in socioeconomic conditions . This would represent an increase in incidence of over fortyfold compared with 2010. Higher numbers of dengue fever cases are projected to occur under RCP8.5 than RCP2.6 in China . Compared with the average numbers in 1997-2012, the annual number of days suitable for dengue fever transmission in the 2020s, 2050s and 2080s will increase by 15, 25 and 40 d, respectively, in southern China under RCP8.5. In addition, areas in which year-round dengue fever epidemics occur will likely increase by 4500, 8800 and 20,700 km2 in the 2020s, 2050s and 2080s, respectively, under RCP8.5 .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report