Dengue is one of the most important mosquito-borne viral diseases in the world, and is endemic in approximately 120 countries. It has been estimated that there are 50–100 million cases of dengue fever and 3.6 billion people are at risk of infection. It is emerging and re-emerging in the tropics and currently poses the most significant arboviral threat to humans.

Lymphatic filariasis (LF), a neglected parasitic disease, is one of the leading causes of morbidity, social stigma and economic loss in many tropical and sub-tropical countries.