Regional AlertWarnings issued as dengue fever cases this year triple February 10, 2023By MBDS Team8 February 2023. From January 1 to February 7, more than 400 cases of dengue fever were recorded in Cambodia. This number is likely to rise, as the community becomes less resistant to the virus. Last year, Cambodia reported a total of 12,500 cases. For 2023, the NDCP forecast 20,000 infections.