The unprecedented outbreak of dengue in Singapore, a dataset of geographical dengue clusters covering the nationwide lockdown period in 2020

Dengue, a mosquito-transmitted viral disease, has posed a public health challenge to Singaporean residents over the years. In 2020, Singapore has been experiencing an unprecedented dengue outbreak. We collect a dataset of geographical dengue clusters reported by the National Environment Agency (NEA) from 15 Feb to 9 July in 2020, covering the nationwide lockdown period from 7 April to 1 June for controlling the pandemics of COVID-19. NEA regularly updates the dengue clusters where each infected person is tagged to one cluster based on his/her most probably infection location (residential apartment or workplace address). Each cluster is further matched to fine-grained spatial units termed as subzones with an average coverage of only about 1.35 km². Such dengue cluster dataset helps reveal not only the dengue transmission pattern, but also the effects of lockdown on dengue spreading dynamics to a certain extent. The resulting data records are released in simple formats for easy access to facilitate studies on dengue epidemics.