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Efficacy and user acceptability of transfluthrin-treated sisal and hessian decorations for protecting against mosquito bites in outdoor bars.
Parasit Vectors. 2017 Apr 20; 10(1):197.PV

Abstract

BACKGROUND

A number of mosquito vectors bite and rest outdoors, which contributes to sustained residual malaria transmission in endemic areas. Spatial repellents are thought to create a protective "bubble" within which mosquito bites are reduced and may be ideal for outdoor use. This study builds on previous studies that proved efficacy of transfluthrin-treated hessian strips against outdoor biting mosquitoes. The goal of this study was to modify strips into practical, attractive and acceptable transfluthrin treated sisal and hessian emanators that confer protection against potential infectious bites before people use bed nets especially in the early evening and outdoors. This study was conducted in Kilombero Valley, Ulanga District, south-eastern Tanzania.

RESULTS

The protective efficacy of hand-crafted transfluthrin-treated sisal decorative baskets and hessian wall decorations against early evening outdoor biting malaria vectors was measured by human landing catches (HLC) in outdoor bars during peak outdoor mosquito biting activity (19:00 to 23:00 h). Treated baskets and wall decorations reduced bites of Anopheles arabiensis mosquitoes by 89% (Relative Rate, RR = 0.11, 95% confidence interval, CI: 0.09-0.15, P < 0.001) and 86% (RR = 0.14, 95% CI: 0.11-0.18, P < 0.001), respectively. In addition, they significantly reduced exposure to outdoor bites of Culex spp. by 66% (RR = 0.34, 95% CI: 0.22-0.52, P < 0.001) and 56% (RR = 0.44, 95% CI: 0.29-0.66, P < 0.001), respectively.

CONCLUSION

Locally hand-crafted transfluthrin-treated sisal decorative baskets and hessian wall decorations are readily acceptable and confer protection against outdoor biting malaria vectors in the early evening and outdoors: when people are resting on the verandas, porches or in outdoor social places such as bars and restaurants. Additional research can help support the use of such items as complementary interventions to expand protection to communities currently experiencing outdoor transmission of mosquito-borne pathogens.

Authors+Show Affiliations

Environmental Health and Ecological Sciences Department, Ifakara Health Institute, Off Mlabani Passage, Ifakara, P.O Box 53, Morogoro, United Republic of Tanzania. jpaliga@ihi.or.tz.Environmental Health and Ecological Sciences Department, Ifakara Health Institute, Off Mlabani Passage, Ifakara, P.O Box 53, Morogoro, United Republic of Tanzania.Environmental Health and Ecological Sciences Department, Ifakara Health Institute, Off Mlabani Passage, Ifakara, P.O Box 53, Morogoro, United Republic of Tanzania. School of Public Health, University of the Witwatersrand, Johannesburg, South Africa. Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK.Environmental Health and Ecological Sciences Department, Ifakara Health Institute, Off Mlabani Passage, Ifakara, P.O Box 53, Morogoro, United Republic of Tanzania.Environmental Health and Ecological Sciences Department, Ifakara Health Institute, Off Mlabani Passage, Ifakara, P.O Box 53, Morogoro, United Republic of Tanzania.QIMR, Berghofer Medical Research Institute, Brisbane, Australia.Environmental Health and Ecological Sciences Department, Ifakara Health Institute, Off Mlabani Passage, Ifakara, P.O Box 53, Morogoro, United Republic of Tanzania. US National Research Council, National Academies of Sciences, Engineering and Medicine, Washington, DC, USA.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28427437

Citation

Masalu, John P., et al. "Efficacy and User Acceptability of Transfluthrin-treated Sisal and Hessian Decorations for Protecting Against Mosquito Bites in Outdoor Bars." Parasites & Vectors, vol. 10, no. 1, 2017, p. 197.
Masalu JP, Finda M, Okumu FO, et al. Efficacy and user acceptability of transfluthrin-treated sisal and hessian decorations for protecting against mosquito bites in outdoor bars. Parasit Vectors. 2017;10(1):197.
Masalu, J. P., Finda, M., Okumu, F. O., Minja, E. G., Mmbando, A. S., Sikulu-Lord, M. T., & Ogoma, S. B. (2017). Efficacy and user acceptability of transfluthrin-treated sisal and hessian decorations for protecting against mosquito bites in outdoor bars. Parasites & Vectors, 10(1), 197. https://doi.org/10.1186/s13071-017-2132-6
Masalu JP, et al. Efficacy and User Acceptability of Transfluthrin-treated Sisal and Hessian Decorations for Protecting Against Mosquito Bites in Outdoor Bars. Parasit Vectors. 2017 Apr 20;10(1):197. PubMed PMID: 28427437.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Efficacy and user acceptability of transfluthrin-treated sisal and hessian decorations for protecting against mosquito bites in outdoor bars. AU - Masalu,John P, AU - Finda,Marceline, AU - Okumu,Fredros O, AU - Minja,Elihaika G, AU - Mmbando,Arnold S, AU - Sikulu-Lord,Maggy T, AU - Ogoma,Sheila B, Y1 - 2017/04/20/ PY - 2016/10/11/received PY - 2017/04/05/accepted PY - 2017/4/22/entrez PY - 2017/4/22/pubmed PY - 2017/9/19/medline KW - Early-evening biting KW - Outdoor-biting KW - Residual malaria transmission KW - Sisal decorative baskets and wall decorations KW - Transfluthrin KW - Vector control SP - 197 EP - 197 JF - Parasites & vectors JO - Parasit Vectors VL - 10 IS - 1 N2 - BACKGROUND: A number of mosquito vectors bite and rest outdoors, which contributes to sustained residual malaria transmission in endemic areas. Spatial repellents are thought to create a protective "bubble" within which mosquito bites are reduced and may be ideal for outdoor use. This study builds on previous studies that proved efficacy of transfluthrin-treated hessian strips against outdoor biting mosquitoes. The goal of this study was to modify strips into practical, attractive and acceptable transfluthrin treated sisal and hessian emanators that confer protection against potential infectious bites before people use bed nets especially in the early evening and outdoors. This study was conducted in Kilombero Valley, Ulanga District, south-eastern Tanzania. RESULTS: The protective efficacy of hand-crafted transfluthrin-treated sisal decorative baskets and hessian wall decorations against early evening outdoor biting malaria vectors was measured by human landing catches (HLC) in outdoor bars during peak outdoor mosquito biting activity (19:00 to 23:00 h). Treated baskets and wall decorations reduced bites of Anopheles arabiensis mosquitoes by 89% (Relative Rate, RR = 0.11, 95% confidence interval, CI: 0.09-0.15, P < 0.001) and 86% (RR = 0.14, 95% CI: 0.11-0.18, P < 0.001), respectively. In addition, they significantly reduced exposure to outdoor bites of Culex spp. by 66% (RR = 0.34, 95% CI: 0.22-0.52, P < 0.001) and 56% (RR = 0.44, 95% CI: 0.29-0.66, P < 0.001), respectively. CONCLUSION: Locally hand-crafted transfluthrin-treated sisal decorative baskets and hessian wall decorations are readily acceptable and confer protection against outdoor biting malaria vectors in the early evening and outdoors: when people are resting on the verandas, porches or in outdoor social places such as bars and restaurants. Additional research can help support the use of such items as complementary interventions to expand protection to communities currently experiencing outdoor transmission of mosquito-borne pathogens. SN - 1756-3305 UR - https://www.unboundmedicine.com/medline/citation/28427437/Efficacy_and_user_acceptability_of_transfluthrin_treated_sisal_and_hessian_decorations_for_protecting_against_mosquito_bites_in_outdoor_bars_ L2 - https://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-017-2132-6 DB - PRIME DP - Unbound Medicine ER -