Data Source: Ministry of Health, Singapore
License: Singapore Open Data Licence
Dengue is a viral infection transmitted to humans through the bite of infected mosquitoes. The primary vectors that transmit the disease are Aedes aegypti mosquitoes. These mosquitoes are also vectors of chikungunya, yellow fever and Zika viruses.
According to WHO, there are around 400 million infections and 100 million symptomatic cases reported annually.
Annual means of daily relative humidity in Singapore (1982-2022)
Between the severe outbreaks in 2020 and 2022, there were relatively fewer dengue fever cases recorded. Was 2021 less humid than 2020 or 2022 in Singapore?
No.
Although the pattern of outbreaks does reflect the impact of monsoon seasons, yet, climate parameters seem insufficient to explain the cyclical incidence of dengue fever throughout years. Social and environmental factors are also influencing the epidemics, such as
Data Source: National Environment Agency, Singapore
License: Singapore Open Data Licence
Kontinentalist, a Singapore based data visualisation studio, also covered a story about dengue fever outbreaks in Singpoare:
Other resources for possible future iterations: