1921
Volume 15, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Summary

A 2-year study was conducted in Haiti to determine the effect of the residual fumigant technique on and on malaria transmission.

From 4,618 to 5,760 houses in the Commune of Arcahaie were treated with dichlorvos-wax dispensers at 3- to 4-month intervals and at a rate of one unit per 165 to 300 cubic feet of space. Twelve-hour exposure tests with caged females showed that the treatment gave average kills of 90 percent for approximately 12 weeks. Although malaria incidence declined, transmission was not interrupted, a result considered to reflect the tendency of to bits out-of-doors.

Behavior studies indicated that 75 to 80 percent of the human biting occurred outside of the house. Half of this feeding was between 5:30 and 7:30 p.m. during a period when the human population normally was outside of the house. These habits of also preclude the successful use of other types of residual house treatments in inter-rupting transmission. This study was a cooperative endeavor of the Agency for International Development, Pan American Health Organization, Communicable Disease Center, and the Government of Haiti.

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/content/journals/10.4269/ajtmh.1966.15.661
1966-09-01
2017-09-25
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