Dengue is a public health concern worldwide and one of the high prevalent diseases in Cambodia with 0.2% mortality in 2019. We aimed to describe the burden of dengue and epidemiological feature of dengue cases in four villages in Kampong Cham and Tbong Khmum provinces from 2016 to 2017.
We used existing data from the community cohort -based active surveillance of Dengue in two villages (La Ork and Chong Angkrang) in Kampong Cham and two villages (Trapeang Chhuk and Roveang) in Tbong Khmum provinces. In total, 612 participants aged 6 months to 30-year-old were enrolled from 2016 until December 2017. We used STATA V16 for data analysis. Descriptive analysis was used to describe the prevalence and demographic characteristics of dengue infection. The multivariate logistic analysis was performed to determine the association between risk factors and dengue infection.
Of the total 612 participants, 108 (17.6%) were confirmed dengue positive, comprising 36/140 (25.7%) in Chong Angkrang, and 42/226 (18.3%) in La Ork, Kampong Cham province, and 18/117 (15.4%) in Trapeang Chhuk, and 12/126 (9.5%) in Roveang, Tbong Khmum province. Dengue was more prevalent in rainy season. In multivariate logistic analysis, dengue infection was significantly associated with location; La Ork was (AOR=0.44, 95% CI: 0.23-0.81, p=0.009), Roveang was (AOR=0.24, 95% CI: 0.10-0.53, p=0.001), and Trapeang Chhuk was (AOR=0.40, 95% CI: 0.19-0.84, p=0.01) comparing to Chong Ankrang. Being a farmer (AOR=2.48, 95% CI: 1.14-5.32, p =0.02), and having animal shelter near the household (AOR=0.58, 95% CI: 0.36-0.93, p =0.02) were independently associated with dengue infection.
Between 2016 and 2017, as high as 17.6% of dengue infection was found in these 4 villages, but it varied across villages with more dengue infection cases were found in rainy season. To be a farmer was at high risk of dengue infection. Therefore, prevention should be targeted these groups of people with raising awareness through community health education and development of measures for dengue prevention and control. Successful dengue control program should be considered on case management and education on vector control by generate epidemiology data and implement in the community level.