| Autor: |
Malik, Zubia, Rathor, Hamayun Rashid, Hassan, Soaib Ali, Khan, Imtinan Akram, Farid, Tallat Anwar |
| Předmět: |
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| Zdroj: |
Pakistan Journal of Public Health; Sep2013, Vol. 3 Issue 3, p31-34, 4p |
| Abstrakt: |
Background: Updated insecticide susceptibility status of malaria and dengue vector mosquito species is essential pre-requisite for strategic planning of vector prevention and control, especially where the use of chemical pesticides is the main methodology used for this purpose. Methods: The recent information on insecticide resistance status in mosquito species in Pakistan has not been worked out. Therefore, determination of resistance status in these species forms the main objective of this study. Anopheline mosquitoes were collected in 2011 through field surveys from randomly selected areas of the Tehsil Talagang, found positive for the Anopheline species. The world Health Organization (WHO) susceptibility test kits were used for establishing resistance/susceptibility status. The survival/mortality data of tested insects was analyzed according to the WHO guideline and criterions for declaring resistance/susceptibility status. Results: Six Anopheles species including primary malaria vectors An. culicifacies and An. stephensi were present in all tested localities. Maximum diversity was recorded in locality Balkasar (Simpson's index (D) of 0.270) and lowest was recorded at Jhatla (Simpson's index (D) of 0.324). Susceptibility test were conducted on only primary malaria vectors against two groups of insecticides Carbamates (Bendiocarb) and Pyrethroids (Lambdacyhalothrin). Both species were susceptible to Lambdacyhalothrin at all localities except Pira Fetehal and Balkasar where An. stephensi and An. culicifacies showed lower mortalities and were placed in verification required category. Conclusion: The results of the study indicate presence of incipient resistance in both the species. It is expected that in these populations continued insecticide selection pressure may lead to high level of resistance, with serious implications on vector control. Therefore, a policy shift towards judicious and selective application pesticides and integrated vector management is recommended. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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