Study of Factors Caused Dengue Haemoragic Fever Case study: Jember, East Java-Indonesia Mochammad Sholehhudin  Department of Environmental Health and Safety Faculty of Public Health, University of Jember, East Java - Indonesia Abstract. DHF is one of communicable diseases that occurs in almost 40% of the world population. DHF cases which in city of Jember, Indonesia becomes attention caused by the largest number of cases and the outbreaks of DHF area (KLB). This study aims to describe the situation of DHF cases in Jember and factors affecting DHF cases. This study is using descriptive method. Samples were taken from the 10 sub-districts which accumulated of the highest DHF cases from 2008-2012. Researcher discovering the last trend of the cause DHF cases in 2012. Researcher is using a text descriptive analysis with frequencies form and crosstabs. This study has been showed that the 10 highest sub-district DHF cases from 2008-2012, DHF trend factors in 2012 showed the number of density low categories correlated 60% with the low category of DHF cases, the low category of healthy house 0% correlated, low category of household with PHBS 0% correlated, and low categories ABJ 0% correlated with high category of DHF cases. The conclusion show up the population density according to the theory of DHF transmission, while the other variables do not fit up with the theory. Keywords: DHF, Jember, factors, and population density. 1. Introduction Today about 2.5 billion people, or 40% of the world’s population, live where in there is a risk of dengue transmission [1]. The World Health Organization (WHO) estimates that 50 to 100 million infections occured yearly, including 500,000 DHF cases and 22,000 deaths, mostly among to the children. Dengue and dengue haemoragic fever are present in urban and suburban areas in America, South-East Asia, the Eastern Mediterranean and the Western Pacific and dengue fever is mainly present in rural areas in Africa [2]. Most of the regions in Indonesia have tropical climate and sub-tropics. These circumstances make Indonesia as one of the DHF endemic countries in south east asia. DHF has been known in Indonesia since 1968 by the name of dengue fever (DBD). The disease was first reported in Surabaya, East Java [3]. Since then, DHF spread to the whole of Indonesia district. During the years 1996-2005, it has been recorded that 334 685 cases of DHF, with the number of died patients are 3,092 people [4]. In 2006, Indonesia contributes the highest number of dengue cases in the Region, with 125 045 cases each year [5]. While the year 2010, Indonesia became the highest rank in ASEAN of DHF cases [6] with the number of deaths until 1,317 people. Data in East Java showed up as that there are 26,059 cases and 233 deaths which occur in almost all regions, amounting to 80% of contracted dengue. In 2012, there are 7 cities in East Java which is included in the city of DHF outbreaks, one of them is Jember. Since 2008-2012, the number of DHF cases in Jember increased except in 2011. Jember conditions in 2008, there were 780 cases and increasing in 2009 by 983 cases. In 2010, there was an outbreak with 1,494 the number of cases, so that’s made whole of the health workers seriously controlling the DHF cases. In 2011, DHF been in good condition due to a significant decline and only 77 cases occur. However, in 2012 this disease became increase by 260 cases. In 2013, the condition of DHF cases have  Corresponding author. Tel: + 6285749700702. E-mail address:mssholhud@gmail.com. 2013 2nd International Conference on Environment, Chemistry and Biology IPCBEE vol.59 (2013) © (2013) IACSIT Press, Singapore DOI: 10.7763/IPCBEE. 2013. V59. 25 131