<![CDATA[Dengue Fever (DHF) or Demam Berdarah (DBD) is an endemic disease in Indonesia. In 2015, there were 126,675 dengue cases occurred in Indonesia. This extraordinary event of DHF can be avoided if the early alert system is carried out well, such as counseling about dengue fever, periodic eradication of mosquito nests or pemberantasan sarang nyamuk (PSN) by the community, administration of abate drugs in water reservoirs and fogging (Fogging). The success of an early alert system can be measured by the larva free rate (ABJ). The use of the certainty factor method in determining the certainty presentation of ABJ and the endemic DHF early alert system, due to the certainty factor method shows good accuracy results of a certainty level of up to 92%. So that when applied to the larva note system (SICANTIK) mobile application. it is expected to be able to predict accurate and fast ABJ and early alert systems. So that through the larva note system (SICANTIK) mobile application, health workers can quickly find out the value of ABJ in a residential area of citizens. Based on this, health workers can take quick action by fogging in areas with low ABJ values. Where the act of fumigation is an act of controlling dengue outbreaks]]>
