Malaria, other vectorborne and parasitic diseases programme

Dengue and arbo-viral diseases - latest story

Recognizing the rapidly increasing threat posed by expanding dengue outbreaks, several Member States in the Western Pacific have called on WHO to develop a new regional action plan beyond 2015.

All about dengue

Dengue is a mosquito-borne viral disease impacting tropical and subtropical countries. Flourishing in urban, suburban and rural settings, the incidence of dengue has soared 30-fold over the last 50 years. An estimated 50 to 100 million infections now occur annually in over 100 endemic countries, putting almost half of the world’s population at risk.

Regional situation update

The number and intensity of dengue outbreaks affecting the Western Pacific Region continues to show an increasing trend despite Member States’ efforts. Although dengue outbreaks continue to occur in many Member States, funds to scale up and sustain routine dengue control are lacking. Accordingly, achieving the goals and objectives of the “Global Strategy for Dengue Prevention and Control 2012 – 2020” in the Region remains a serious challenge.

Chikungunya and other arboviral diseases

Chikungunya and Zika Fever are two mosquito-borne viral diseases that have been reported from several member states in recent years. Chikungunya was first described during an outbreak in southern Tanzania in 1952. It is an RNA virus that belongs to the alphavirus genus of the family Togaviridae. The name “chikungunya” derives from a word in the Kimakonde language, meaning “to become contorted”, and describes the stooped appearance of sufferers with joint pain (arthralgia).


fact buffet

75%Population affected by dengue lives in the Asia Pacific region

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356,838Reported cases (2012)

1,248Reported deaths (2012)