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Prevalence and breeding habitats of the dengue vectors Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in the semi-urban areas of two different climatic zones in Sri Lanka

Published online by Cambridge University Press:  25 September 2013

Thilini C. Weeraratne ,
M. Devika B. Perera ,
M.A.C. Mohamed Mansoor  and
S.H.P. Parakrama Karunaratne
Thilini C. Weeraratne
Affiliation:
Department of Zoology, Faculty of Science, University of Peradeniya, Peradeniya20400, Sri Lanka
M. Devika B. Perera
Affiliation:
Regional Office, Anti-Malaria Campaign, Kurunegala, Sri Lanka
M.A.C. Mohamed Mansoor
Affiliation:
Regional Office, Anti-Malaria Campaign, Kurunegala, Sri Lanka
S.H.P. Parakrama Karunaratne*
Affiliation:
Department of Zoology, Faculty of Science, University of Peradeniya, Peradeniya20400, Sri Lanka
*
*E-mail: [email protected]; [email protected]
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Abstract

Dengue has become the fastest-growing mosquito-borne disease in Sri Lanka and the control of the vectors, Aedes aegypti Linnaeus and Ae. albopictus Skuse, is the most effective way of controlling the disease. A detailed study on vector prevalence has not been recorded from Sri Lanka. Therefore, the present study was undertaken to study the prevalence of both vectors in four semi-urban study sites in two of the most affected districts, namely Kandy (wet zone) and Kurunegala (intermediate zone), by conducting egg surveys (using ovitraps) and larval surveys from June 2007 to May 2008. A total of 82,524 eggs and 2658 larvae of Ae. aegypti and Ae. albopictus were collected. A total of 3699 potential breeding habitats were examined. Ovitrap and larval indices (house, container and Breteau) showed that all four areas are at epidemic risk, especially due to a high abundance of Ae. albopictus. The highest numbers for both the species were from the Kandy sites where dense vegetation, high rainfall and low temperature prevailed. The results showed a high mortality rate during the egg-to-larva transition, suggesting that conducting an egg survey alone would overestimate the vector abundance and the disease risk. For Ae. albopictus, the monthly mean number of eggs showed positive relationships with relative humidity in both districts and with rainfall in the Kandy District. The number of dengue cases in the area had no positive relationships with the abundance of eggs or larval density indices. Discarded receptacles were the most preferred breeding habitat for these dengue vectors. Since the attractiveness (inferred by the calculated risk factors) of most of the breeding habitats was very high, elimination of these breeding sites is essential for the success of dengue control programmes.

Keywords

Aedes aegyptiAedes albopictusovitrapslarval surveyovitrap indexlarval indices
Type
Research Papers
Information
International Journal of Tropical Insect Science , Volume 33 , Issue 4 , December 2013 , pp. 216 - 226
Copyright
Copyright © icipe 2013 

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References

Department of Food and Environmental Hygiene, The Government of Hong Kong Special Administrative Region (2003) Pest Control, Dengue Fever. Available at: http://www.fehd.gov.hk/safefood/Pcas.html (accessed 10 January 2010).Google Scholar
Favier, C., Degallier, N., Vilarinhos, P. T., Carvalho, M. S., Yoshizawa, M. A. and Knox, M. B. (2006) Effects of climate and different management strategies on Aedes aegypti breeding sites: a longitudinal survey in Brasília (DF, Brazil). Tropical Medicine & International Health 11, 1104–1118.Google Scholar
Fontenille, D. and Toto, J. C. (2001) Aedes (Stegomyia) albopictus (Skuse), a potential new dengue vector in southern Cameroon. Emerging Infectious Diseases 7, 1066–1067.Google Scholar
Goto K., Kumarendran B., Mettananda S., Gunasekara D., Fujii Y. and Kaneko S. (2013) Analysis of effects of meteorological factors on dengue incidence in Sri Lanka using time series data. PLoS ONE 8: e63717. doi:10.1371/journal.pone.0063717.CrossRefGoogle Scholar
Hapugoda M. D., de Silva N. R., Rajamanthri M. D. S. and Abeyewickreme W. (2001) Dengue vector surveillance in localities with reported dengue cases in Kurunegala and Gampaha districts, p. 5. In Sri Lanka Association for the Advancement of Science, Proceedings of the 57th Annual Session. Sri Lanka Association for the Advancement of Science, Colombo. ISSN 1391-023X.Google Scholar
Hapugoda, M. D., Gunasekera, M. B., de Silva, N. R., Gunasena, S., Prithimala, L. D., Dayanath, M. Y. D. and Abeyewickreme, W. (2003) Detection in dengue virus in Aedes albopictus mosquitoes by reverse transcription polymerase-chain reaction-lipid hybridization (RT-PCR-LH) based assay. Bulletin of the Sri Lanka College of Microbiologists 1, 30–31.Google Scholar
Hobbs J. H., Hughes E. A. and Eichold B. H. (1999) Replacement of Aedes aegypti by Aedes albopictus in Mobile, Alabama. Journal of the American Mosquito Control Association 7, 488–489.Google Scholar
Hornby, J. A., Moore, D. E. and Miller, T. W. J. (1994) Aedes albopictus distribution, abundance and colonization in Lee County, Florida, and its effect on Aedes aegypti. Journal of the American Mosquito Control Association 10, 397–402.Google Scholar
Karunaratne S. H. P. P., Weeraratne T. C., Perera M. D. B. and Surendran S. N. (2013) Insecticide resistance and, efficacy of space spraying and larviciding in the control of dengue vectors Aedes aegypti and Aedes albopictus in Sri Lanka. Pesticide Biochemistry and Physiology (in press, available at: http://dx.doi.org/10.1016/j.pestbp.2013.05.011).Google Scholar
Koenraadt, C. J., Aldstadt, J., Kijchalao, U., Sithiprasasna, R., Getis, A., Jones, J. W. and Scott, T. W. (2008) Spatial and temporal patterns in pupal and adult production of the dengue vector Aedes aegypti in Kamphaeng Phet, Thailand. American Journal of Tropical Medicine and Hygiene 79, 230–238.Google Scholar
Kusumawathie, P. H. D. and Fernando, W. P. (2003) Breeding habitats of Aedes aegypti Linnaeus and Ae. albopictus Skuse in a dengue transmission area in Kandy. Ceylon Journal of Medical Sciences 46, 51–60.Google Scholar
Kusumawathie P. H. D., Jayasooriya G. A. J. S. K., Hapugoda M. and Abeyewickreme W. (2011) Occurrence of dengue epidemic in Minipe valley of the Kandy District: evidence for Aedes albopictus being an epidemic vector of dengue in Sri Lanka, p. 2. In Sri Lanka Association for the Advancement of Science, Proceedings of the 67th Annual Session. Sri Lanka Association for the Advancement of Science, Colombo. ISSN 1391-023X.Google Scholar
Lenhart, A. E., Walle, M., Cedillo, H. and Kroeger, A. (2005) Building a better ovitrap for detecting Aedes aegypti oviposition. Acta Tropica 96, 56–59.Google Scholar
Li, C. F., Lim, T. W., Han, L. L. and Fang, R. (1985) Rainfall, abundance of Aedes aegypti and dengue infection in Selangor, Malaysia. Southeast Asian Journal of Tropical Medicine and Public Health 16, 560–568.Google Scholar
Meara, G. F., Evans, L. F., Alan, D. G. and Cuda, J. P. (1995) Spread of Aedes albopictus and decline of Ae. aegypti (Diptera: Culicidae) in Florida. Journal of Medical Entomology 32, 554–562.Google Scholar
Ministry of Health, Sri Lanka (2009) Survey on dengue epidemic 2009 (Part 1). Weekly Epidemiological Report 36, 1–4.Google Scholar
Moore, C. G. (1999) Aedes albopictus in the United States: current status and prospects for further spread. Journal of the American Mosquito Control Association 15, 221–227.Google Scholar
Nathan, M. B. and Knudsen, A. B. (1991) Aedes aegypti infestation characteristics in several Caribbean countries and implications for integrated community-based control. Journal of the American Mosquito Control Association 7, 400–404.Google ScholarPubMed
Neto, P. L. and Navarro-Silva, M. A. (2004) Development, longevity, gonotrophic cycle and oviposition of Aedes albopictus Skuse (Diptera: Culicidae) under cyclic temperatures. Neotropical Entomology 33, 29–33.Google Scholar
Novak, R. (1992) The Asian tiger mosquito, Aedes albopictus. Wing Beats 3, 5.Google Scholar
Ooi, E.-E., Goh, K.-T. and Gubler, D. J. (2006) Dengue prevention and 35 years of vector control in Singapore. Emerging Infectious Diseases 12, 887–893.Google Scholar
Pham H. V., Doan H. T. M., Phan T. T. and Minh N. T. (2011) Ecological factors associated with dengue fever in a central highlands province, Vietnam. BMC Infectious Diseases 11, 172. doi:10.1186/1471-2334-11-172.Google Scholar
Pratt H. D., Stojanovich C. J. and Magennis N. J. (1964) Workbook on Identification of Aedes aegypti Larvae. US Department of Health, Education, and Welfare, Atlanta. 57 pp. Available at: http://www.eric.ed.gov/ERICDocs/data/ericdocs2sql/content_storage_01/0000019b/80/36/7e/b7.pdf (accessed 5 April 2010).Google Scholar
Richards, S. L., Apperson, C. S., Ghosh, S. K., Cheshire, H. M. and Zeichner, B. C. (2006) Spatial analysis of Aedes albopictus (Diptera: Culicidae) oviposition in suburban neighborhoods of a Piedmont community in North Carolina. Journal of Medical Entomology 43, 976–989.Google Scholar
Richards, S., Ghosh, S. and Zeichner, B. C. (2008) Impact of source reduction on the spatial distribution of larvae and pupae of Aedes albopictus (Diptera: Culicidae) in suburban neighborhoods of a Piedmont community in North Carolina. Journal of Medical Entomology 45, 617–628.Google Scholar
Rozilawati, H., Zairi, J. and Adanan, C. R. (2007) Seasonal abundance of Aedes albopictus in selected urban and suburban areas in Penang, Malaysia. Tropical Biomedicine 24, 83–94.Google Scholar
Service M. W. (1993) Mosquito Ecology: Field Sampling Methods, 2nd edn. Chapman & Hall, London. xiii+988 pp. ISBN 1 85166-798-9.Google Scholar
Tanaka, K., Mizusawa, K. and Saugstad, E. S. (1979) A revision of the adult and larval mosquitoes of Japan (including the Ryukyu Archipelago and the Ogasawa islands) and Korea (Diptera: Culicidae). Contributions of the American Entomological Institute 16, 1–987.Google Scholar
WHO Media Centre (2012) Dengue and Severe Dengue. Fact Sheet no. 117. November 2012. http://www.who.int/mediacentre/factsheets/fs117/en/index/html (accessed 2 January 2012).Google Scholar
WHO [World Health Organization – Regional Office for South East Asia] (2010) Situation Update of Dengue in the SEA Region, 2010. Available at: http://www.searo.who.int/LinkFiles/Dengue_Dengue_update_SEA_2010.pdf (accessed 8 February 2011).Google Scholar
Womack, M. (1993) The yellow fever mosquito, Aedes aegypti. Wing Beats 5, 4.Google Scholar