P-61 Applications of chemical, environmental and biological techniques to control phlebotomine sandflies in an effort to reduce Leishmaniasis in Guyana: A field study
Author(s):
F Higgins , A Jodha , O Dass , H Cox
Type Of Study:
- Experimental or Intervention Study
Year of Presentation:
2023
Objective: The aim of this research was to determine which geographical areas, in Guyana are most affected by leishmaniasis and to identify the efficacy of different vector control techniques in reducing the number of phlebotomine sandflies vectors.
Methods: The experiment was conducted in Regions 4, 7, and 10 in zones which were near bushes, grass, and fresh water. The sampling strategy used 3 trapping methods namely the BG Sentinel, the Human Landing Catch, and the Light Trap. The traps were set between 6am and 6pm and 10pm in the evening. Permethrin-treated bed nets were placed over two cartilages to examine the effectiveness of the environmental treatment. Bioassays were used in chemical applications to assess efficacy.
Results: A total of 71 charts were assessed for the retrospective chart review(RCR), but only 54 were actually used. The highest cases were found in Regions 7 and 10, according to the analysis. Permethrin-treated bed nets have been shown to completely eradicate newly introduced sandflies in environmental applications. Comparatively, the indoor residual spraying (IRS) had a 90% fatality rate for chemical applications.
Conclusion: In comparison to the light trap, the BG-Sentinel and HCL were more successful at catching sandflies. According to the experiment that was done for this study, both chemical and environmental applications were effective in eliminating sandflies.