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Dengue Fever In Malaysia

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1.1. Background Information
Aedes mosquitoes are the vectors that cause the mosquito-borne disease such as Dengue fever (DF) and dengue haemorrhagic fever (DHF). The cases of dengue are keeping increasing from time to time and this has made it become a serious international concern. Initially, in the 1950’s only 5 countries documented dengue but up until now the dengue cases were reported in more than 100 countries (Guha –Sapi & Schimmer, 2005). Dengue can be transferred when the mosquitoes infected with one of the four dengue virus serotypes known as DEN-1, DEN-2, DEN-3, and DEN-4 (WHO, 2014). There is no vaccine or any exact medication to treat dengue. In Malaysia, dengue fever cases are not something bizarre. Selangor is one of the states …show more content…

The major problem in Malaysia is the outbreak of dengue cases is which firstly recorded occurred in Penang on 1901 until 1902. DEN-1, DEN-2, DEN-3 and DEN-4 are four serotypes of dengue virus which are of genus Flavivirus (Anonymous, nd) Ae. albopictus and Ae. aegypti is mosquito vector that can spread virus to human by transovarial spread from infected female’s mosquito to its progeny by contagion of ovaries and eggs. Thus, mosquitoes born comprise identical viruses as adult mosquito or as their mother (Anupong Sujariyakul et al., 2005). Water quality contributed the profusion of Aedes species in University Kuala Lumpur studies (Chen et al., 2009). Mosquitoes may live in a diversity of habitations with fresh water, salty water, or any water clear, muddled or contaminated except in oceanic habitats with high concentration of salt. The clean water such as rain-filled containers in moist tropical zones are commonly breeding sites for some Aedes species while with contaminated water mainly on-site sanitation systems with immobile water are favoured place by Culex species (Saleeza & Azirun, …show more content…

Approximately every 8 year is the pattern of dengue cyclic. The small outbreak in Kuala Lumpur occurred in the Methodist Girls School among teachers and students which is involving serotypes DEN-1. That is the first dengue serotypes being found. Later on in 1960, on major outbreak the dengue virus DEN-4 was identified and being the principal in 1967 and 1969. In 1970, DEN-2 was become dominant. At this time, all types of dengue virus associated to cause outbreaks of Dengue Fever (DF) and Dengue Haemorrhagic Fever (DHF). The changes of dengue virus contribute the changes of dengue designs in Malaysia (Abubakar & Shafee,

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