malaria control by the use of sanitation and larviciding in bandar abbas, iran(1981-1983)

during 1981-83, propoxure residual spraying operations were discontinued and only extensive larviciding, using a mixture of fuel oil, gasoil or abate larvicide, on a ten days interval basis, and sanitary improvements wetre used in different areas of the city for the control of mosquito breeding places. the results of the indoor adult mosquitoes and larval densities indicated that in the years 1981, 1982 and 1983 the density of a.stephensi (the domianant vector of malaria in the city of bandar abbas) were 0.2 p. falciparum and 79.8% p.vivax). most of the cases detected during the last three years are considered relapse or imported cases. in general, these studies showed that, sanitation and larviciding in active and potential breeding places in bandar abass are able to keep down the density of adult and larvae of anophelinae mosquitoes and hence reducing malaria cases in town.