Dynamics of dengue vector in Nepal

Numerous factors are responsible for the dengue transmission in the country and one of it is believed to be associated with the spread of the vector within the country. Though rapid urbanization and increasement of travel have been obvious in the country, the climate conditions have also been projected as a contributional factor to the spread of the dengue vector. A stable population of both A. aegypti and A. albopictus have been found to be established from the lowlands to the middle mountain at an altitude of 2000 m above sea level in Nepal [18–20]. This scenario makes it likely that Hill regions in Nepal will continue to be environmentally favored for the breeding of dengue vector and consecutively may constitute a potential risk for dengue outbreaks in the future.