Prevalence of Aedes aegypti at the international port and airport, Kolkata (West Bengal), India.

* Formerly known as Calcutta The International Health Regulations (1969) (1) envisage that every port and its adjoining area within a perimetre of 400 metres should be kept free from immature and adult stages of Aedes aegypti, the vector of dengue haemorrhagic fever (DHF) and yellow fever. In order to ensure this, active mosquito surveillance and vector control measures within the prescribed limits are in place at the Kolkata port/airport areas. As a cross check a study was carried out by a team of experts from the National Institute of Communicable Diseases (NICD) in and around the Kolkata international port and airport, in the West Bengal state of India, during September 1997. The findings of the survey are presented in this paper.