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|Title: ||An Assessment of the Effects of Insecticide-Treated Livestock Protective Fences (LPF) for Protecting Humans from Anthropophilic Mosquitoes and Malaria Transmission in a Suburb of Kumasi in the Forest Zone of Ghana|
|Authors: ||Abonuusum, A.|
|Issue Date: ||11-Feb-2019|
|Publisher: ||International Journal of TROPICAL DISEASE & Health|
|Citation: ||International Journal of TROPICAL DISEASE & Health, 34(2): 1-8,|
|Abstract: ||Aim: The study investigated whether a 100 cm high livestock protective fence (LPF), effectively
protects humans against anthropophilic mosquitoes and hence malaria.
Study Design: Four experimental segregated, half-roofed shelters with concrete floors, each
measuring 6m x 7m, separated from each other by 500m, fenced by 100cm high chicken wire, one
of them enclosed by an LPF, were used.
Place and Duration of Study: Work was done on Boadi Cattle Farm by Kumasi Centre for
Collaborative Research in Tropical Medicine, Kwame Nkrumah University of Science and
Technology, Ghana, for four weeks.
Methodology: Human landing catches of mosquitoes were conducted twice a week. Two groups
of two mosquito collectors worked at each of the four shelters during the same night; one group
collected from 1800h to midnight, the second group from midnight to 0600h. One collector collected
inside as the other collected outside at a distance of about 20m.
Results: Altogether 6118 mosquitoes were collected, of which 773 Anopheles gambiae, 11 A.
funestus, 874 A. ziemanni and 4460 Culicinae. There were insignificant (P = 0.30) and significant
(P = 0.0003) decreases in numbers of A. ziemanni and culicines entering the shelters with LPF
respectively. However, significantly more A. gambiae entered the LPF fenced shelters than in
unfenced shelters (P = 0.0008). A variation of hourly biting activities of A. gambiae with a peak
between 0100 and 0400 at Boadi and between 1100 and 0300 at two sites at Anwomaso, was
observed. Plasmodium falciparum infections were detected in only 1% of A. gambiae but not in A.
ziemanni. All 47 A. gambiae s.l. randomly selected and tested using Polymerase Chain Reaction
were identified as A. gambiae s.s.
Conclusion: LPF protects humans against some mosquitoes but not the malaria vector, A.
|Description: ||This article has been published in International Journal of TROPICAL DISEASE
& Health and is available at DOI: 10.9734/IJTDH/2018/46829|
|Appears in Collections:||College of Science|
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