The distance from airpo or seapo which has to be free from mosquitoes is -: (A) 400 m, (B) 500 m, (C) 1 km, (D) 100m
Answer is A. - The aircraft and ships arriving from endemic areas are subjected to aerosol spraying with prescribed insecticides on arrival for destruction of insect vectors. -The distance from airpo or seapo which has to be free from mosquitoes is 400 meters. Reference : Park's textbook of preventive and social medicine, 23rd edition pg no:284