Which one of the following formulae is used for computing the aedes aegypti index at international airpos and sea po-
Aedes aegypti index is defined as the ratio expressed as a percentage between the number of houses in a limited well-defined area on the premises of which actual breeding of Aedes aegypti are found and the total number of houses examined in that area Park's Textbook of Preventive and Social Medicine, 25th Edition, Pg
(Number of bits of aedes aegypti/Total number of man hour) x 100
(Number of houses positive for Aedes aegypti breeding/Total number of houses)x100
(Number of containers positive for Aedes aegypti breeding/Total number of containers)x100
Number of containers positive for Aedes aegypti breeding/Total number of houses)x100
Environment and health