DengueNet is the WHO's central data management system for the global epidemiological and virological surveillance of dengue fever (DF) and dengue haemorrhagic fever (DHF). The network collects standardized data from all DengueNet partners worldwide, and provides ready access to a variety of indicators such as incidence, case fatality rates (CFR), frequency and distribution of DF and DHF cases, number of fatalities and circulating virus sirotypes. The key objective of DengueNet is to provide a standard platform for sharing current surveillance data in order to detect and monitor incidence and trends of dengue and DHF. This system promotes greater standardization of dengue reporting, making national data more comparable than they are today. DengueNet also provides unrestricted access to useful information that can help public health professionals and advance warning of epidemics to improve preparedness, case management, and reduce fatality rates.