Abstract
Environmental conditions play an important role in the transmission of malaria; therefore, regulating these conditions can help to reduce disease burden. Environmental management practices for disease control can be implemented at the community level to complement other malaria control methods. This study assesses current knowledge and practices related to mosquito ecology and environmental management for malaria control in a rural, agricultural region of Tanzania. Household surveys were conducted with 408 randomly selected respondents from 10 villages and qualitative data were collected through focus group discussions and in-depth interviews. Results show that respondents are well aware of the links between mosquitoes, the environment, and malaria. Most respondents stated that cleaning the environment around the home, clearing vegetation around the home, or draining stagnant water can reduce mosquito populations, and 63% of respondents reported performing at least one of these techniques to protect themselves from malaria. It is clear that many respondents believe that these environmental management practices are effective malaria control methods, but the actual efficacy of these techniques for controlling populations of vectors or reducing malaria prevalence in the varying ecological habitats in Mvomero is unknown. Further research should be conducted to determine the effects of different environmental management practices on both mosquito populations and malaria transmission in this region, and increased participation in effective techniques should be promoted.
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Notes
The survey instrument is available from the authors upon request.
Note that respondents were able to provide more than one answer to a number of the survey questions, so percentages may total greater than 100.
In addition to self-reports, interviewers directly observed nets in 83% of the households. In comparison, household mosquito net ownership for Morogoro Region was determined to be 64.7% in the 2004/2005 Tanzania Demographic and Health Survey.
References
Ault SK (1994) Environmental management: a re-emerging vector control strategy. American Journal of Tropical Medicine and Hygiene 50(6 Supple):35-49.
CDC (2005) Fighting malaria in Tanzania. http://www.cdc.gov/malaria/features/tanzania_pres_initiative.htm. Accessed 8 March 2007
Coluzzi M, Sabatini A, Petrarca V, Di Deco MA (1979) Chromosomal differentiation and adaptation to human environments in the Anopheles gambiae complex. Transactions of the Royal Society of Tropical Medicine and Hygiene 73(5):483-497.
Gimning JE, Ombok M, Kamau L, Hawley WA (2009) Characteristics of larval Anopheline (Diptera: Culicidae) habitats in western Kenya. Journal of Medical Entomology 38(2):282-288.
Hustache S, Nacher M, Djossou F, Carme B (2007) Malaria risk factors in Amerindian children in French Guiana. American Journal of Tropical Medicine and Hygiene 76(4):619-625.
IAMAT (2009) World malaria risk chart. http://www.iamat.org/pdf/world_malaria_risk_chart.pdf. Accessed 28 October 2009.
Ijumba JN, Lindsay SW (2001) Impact of irrigation on malaria in Africa: paddies paradox. Medical and Veterinary Entomology 15(1):1-11.
Ijumba JN, Shenton FC, Clarke SE, Mosha FW, Lindsay SW (2002) Irrigated crop production is associated with less malaria than traditional agricultural practices in Tanzania. Transactions of the Royal Society of Tropical Medicine and Hygiene 96(5):476-480.
Karimuribo ED, Kusiluka LJ, Mdegela RH, Kapaga AM, Sindato C, Kambarage DM (2005) Studies on mastitis, milk quality and health risks associated with consumption of milk from pastoral herds in Dodoma and Morogoro regions, Tanzania. Journal of Veterinary Science 6(3):213-221.
Keiser J, Singer BH, Utzinger J (2005) Reducing the burden of malaria in different eco-epidemiological settings with environmental management: a systematic review. Lancet Infectious Diseases 5(11):695-708.
Lindsay SW, Egwang TG, Kabuye F, Mutambo T, Matwale GK (2004) Community-based environmental management program for malaria control in Kampala and Jinja, Uganda - Final Report, Washington, DC: USAID
Lyimo NLH, Mtenga LA, Kimambo AE, Hvelplund T, Laswai GH, Weisbjerg MR (2004) A survey on calf feeding systems, problems and improvement options available for the smallholder dairy farmers of Turiani in Tanzania. Livestock Research for Rural Development 16. http://www.cipav.org.co/lrrd/lrrd16/4/lyim16023.htm. Accessed 9 July 2007
Mboera LEG, Mlozi MRS, Senkoro KP, Rwegoshora RT, Rumisha SF, Mayala BK, et al. (2007) Malaria and agriculture in Tanzania: impact of land-use and agricultural practices on malaria burden in Mvomero District. Dar es Salaam: Systemwide Initiative on Malaria and Agriculture.
Mlozi MRS, Shayo EH, Senkoro KP, Mayala BK, Rumisha SF, Mutayoba B, et al. (2006) Participatory involvement of farming communities and public sectors in determining malaria control strategies in Mvomero District, Tanzania. Tanzania Health Research Bulletin 8(3):134-140.
Mukabana WR, Kannady K, Kiama GM, Ijumba JN, Mathenge EM, Kiche I, et al. (2006) Ecologists can enable communities to implement malaria vector control in Africa. Malaria Journal 5:9.
Mutuku FM, Alaii JA, Bayoh MN, Gimnig JE, Vulule JM, Walker ED, et al. (2006) Distribution, description, and local knowledge of larval habitats of Anopheles gambiae s.l. in a village in western Kenya. American Journal of Tropical Medicine and Hygiene 74(1):44-53.
National Bureau of Statistics, Tanzania, ORC Macro (2005) Tanzania Demographic and Health Survey 2004/2005, Dar es Salaam and Calverton, Maryland
Ng’ang’a P, Shililu J, Jayasinghe Kimani V, Kabutha C, Kabuage L, et al. (2008) Malaria vector control practices in an irrigated rice agro-ecosystem in central Kenya and implications for malaria control. Malaria Journal 7:146.
Okech B, Mwobobia I, Kamau A, Muiruri S, Mutiso N, Nyambura J, et al. (2008) Use of integrated malaria management reduces malaria in Kenya. PLoS ONE 3(12):e4050.
Opiyo P, Mukabana WR, Kiche I, Mathenge E, Killeen GF, Fillinger U (2007) An exploratory study of community factors relevant for participatory malaria control on Rusinga Island, western Kenya. Malaria Journal 6:48.
Pruss-Ustun A, Corvalan C (2006) Preventing disease through healthy environments. Geneva: World Health Organization.
Service RE, Townson H (2002) The Anopheles vector. In: Essential Malariology, Warrell DA, Gilles HM (editors), London, UK: Arnold Press, pp 59–84
Tanzania Commission for AIDS, Zanzibar AIDS Commission, National Bureau of Statistics, Office of Chief Government Statistician, Macro International Inc. (2008) Tanzania HIV/AIDS and Malaria Indicator Survey 2007-08, Dar es Salaam and Calverton, MA
Utzinger J, Tozan Y, Singer BH (2001) Efficacy and cost-effectiveness of environmental management for malaria control. Tropical Medicine and International Health 6(9):677-687.
van den Berg H, Knols BG (2006) The Farmer Field School: a method for enhancing the role of rural communities in malaria control? Malaria Journal 5(1):3.
Walker K (2002) A Review of Control Methods for African Malaria Vectors. Activity Report 108, Washington, DC: USAID.
Yasuoka J, Levins R, Mangione TW, Spielman A (2006a) Community-based rice ecosystem management for suppressing vector anophelines in Sri Lanka. Transactions of the Royal Society of Tropical Medicine and Hygiene 100(11):995-1006.
Yasuoka J, Mangione TW, Spielman A, Levins R (2006b) Impact of education on knowledge, agricultural practices, and community actions for mosquito control and mosquito-borne disease prevention in rice ecosystems in Sri Lanka. American Journal of Tropical Medicine and Hygiene 74(6):1034-1042.
Yohannes M, Haile M, Ghebreyesus TA, Witten KH, Getachew A, Byass P, et al. (2005) Can source reduction of mosquito larval habitat reduce malaria transmission in Tigray, Ethiopia? Tropical Medicine and International Health 10(12):1274-1285.
Acknowledgments
The authors would like to acknowledge Pauline Bernard, Gibson Kagaruki, Michael Ligola, Stanley Lucas, Chacha Manga, Rogers Rindeni, Benjamin Mayala, and Kesheni Senkoro for their dedicated and invaluable assistance with this study. This material is based upon work supported by the National Science Foundation under Grant No. 0720981. Additional support was provided through several Duke University funding sources: the Graduate Award for Research and Training in Global Health, the Faculty Award for Research in Global Health, the Provost's Common Fund, the Aleane Webb Dissertation Research Award, the Graduate School Dissertation Travel Award, the Student International Discussion Group Travel Grant, and the Environmental Internship Fund. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation or our other supporting institutions.
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Randell, H.F., Dickinson, K.L., Shayo, E.H. et al. Environmental Management for Malaria Control: Knowledge and Practices in Mvomero, Tanzania. EcoHealth 7, 507–516 (2010). https://doi.org/10.1007/s10393-010-0343-9
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DOI: https://doi.org/10.1007/s10393-010-0343-9