DENGUE VECTOR SURVEILLANCE IN MAJOR TOWNS OF MALAYSIA
Abstract
Ovitrap surveillance was conducted between February and June 2017 to determine the abundance and distribution of dengue vectors in 13 residential areas located in major towns of different states in Malaysia. Forty ovitraps were placed randomly within the vicinity of buildings which were protected from sunlight and rain. The study revealed that ovitrap index (OI) ranged from 12.50% to 87.50% across all study sites. Both Aedes aegypti and Aedes albopictus were found breeding in all study sites except for the study sites in Alor Setar, Kedah Gambang, Pahang and Kuala Terengganu, Terengganu, Malaysia in which only Ae. albopictus was recorded. The mean number of larvae obtained revealed that Ae. albopictus was a more dominant dengue vector as compared to the mean number of Ae. aegypti larvae in nine out of thirteen study sites (P<0.05). Mixed breeding of both Aedes species were found in 4.00% to 28.57% of the total number of recovered ovitraps from all study sites. This study revealed that OIs obtained from all these major towns were >10%, indicating Malaysia is generally at risk of dengue outbreak, and control approaches must be carried out immediately to reduce the vector population to a level below the threshold of transmission.
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Ahmad, M., Zairi, J., Asmalia, M.L., Dieng, H. & Wan-Fatma, Z. 2015. Assessing dengue outbreak areas using vector surveillance in north east district, Penang Island, Malaysia. Asian Pacific Journal of Tropical Disease 5(11): 869-876.
Chan, K.L., Chan, Y.C. & Ho, B.C. 1971. Aedes aegypti (L.) and Aedes albopictus (Skuse) in Singapore City. Competition between species. Bulletin of the World Health Organization 44: 643-649.
Chareonviriyaphap, T., Akratanakul, P., Nettanomsak, S. & Huntamai, S. 2003. Larval habitats and distribution patterns of Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) in Thailand. The Southeast Asian Journal of Tropical Medicine and Public Health 34(3): 529-535.
Cheah, W.L., Chang, M.S. & Wang, Y.C. 2006. Spatial, environmental and entomological risk factors analysis on a rural dengue outbreak in Lundu District in Sarawak, Malaysia. Tropical Biomedicine 23(1): 85-96.
Chen, C.D., Seleena, B., Saranum, M.M., Chiang, Y.F., Lee H.L., Nazni, W.A. & Sofian-Azirun, M. 2005. Dengue vector surveillance in urban residential and settlement areas in Selangor, Malaysia. Tropical Biomedicine 22(1): 39-43.
Chen, C.D., Seleena, B., Nazni W.A., Lee, H.L., Masri, S.M., Chiang, Y.F. & Sofian-Azirun, M. 2006a. Dengue vectors surveillance in endemic areas in Kuala Lumpur city centre and Selangor state, Malaysia. Dengue Bulletin 30: 197-203.
Chen, C.D., Nazni, W.A., Lee, H.L., Seleena, B., Mohd Masri, S., Chiang, Y.F. & Sofian-Azirun, M. 2006b. Mixed breeding of Aedes aegypti (L.) and Aedes albopictus Skuse in four dengue endemic areas in Kuala Lumpur and Selangor, Malaysia. Tropical Biomedicine 23(2): 224–227.
Furlow, B.M. & Young, W.W. 1970. Larval surveys compared to ovitrap surveys for detecting Aedes aegypti and Aedes triseriatus. Mosquito News 30(3): 468-470.
Gratz, N. 2004. Critical review of the vector status of Aedes albopictus. Medical and Veterinary Entomology 18(2): 215–227.
Hamid, N.A., Noor, S.N.M., Isa, N.R., Rodzay, R.M., Effendi, A.M.B., Hafisool, A.A., Azman, F.A., Abdullah, S.F., Zaman, M.K.K., Norsham, M.I.M., Amanzuri, N.H., Khalil, N.A., Zambari, I.F., Rani, A.N.M., Ariffin, F.D., Omar, T., Ahmad, N.W. & Lee, H.L. 2020. Vertical infestation profile of Aedes in selected urban high-rise residences in Malaysia. Tropical Medicine and Infectious Disease 5(3): 114.
Hasnan, S.N.A., Dom, N.C., Latif, Z.A. & Madzlan, F. 2017. Surveillance of Aedes mosquitoes in different residential types in central zone of Shah Alam, Selangor. Asian Pacific Journal of Tropical Disease 7(6): 930-938.
Ho, L.Y., Loh, T.S. & Yam, L.A. 2014. Surveillance and resistance status of Aedes population in two suburban residential areas in Kampar town, Perak, Malaysia. Tropical Biomedicine 31(3): 441–448.
Huang, B., Montgomery, B.L., Adamczyk, R., Ehlers, G., van den Hurk, A.F. & Warrilow, D. 2020. A LAMP-based colorimetric assay to expedite field surveillance of the invasive mosquito species Aedes aegypti and Aedes albopictus. PLoS Neglected Tropical Diseases 14(3): e0008130.
Isaacs, N. 2006. Measuring inter epidemic risk in a dengue endemic rural area using Aedes larval indices. Indian Journal of Community Medicine 31(3): 187-188.
Jakob, W.L. & Bevier, G.A. 1969. Application of ovitraps in the U.S. Aedes aegypti Eradication Program. Mosquito News 29(1): 55-61.
Jansen, C.C. & Beebe, N.W. 2010. The dengue vector Aedes aegypti: What comes next. Microbes and Infection 12: 272-279.
Jirakanjanakit, N., Rongnoparut, P., Saengtharatip, S., Chareonviriyaphap, T., Duchon, S., Bellec, C. & Yoksan, S. 2007. Insecticide susceptible/resistance status in Aedes (Stegomyia) aegypti and Aedes (Stegomyia) albopictus (Diptera: Culicidae) in Thailand during 2003–2005. Journal of Economic Entomology 100(2): 545-550.
Lee, H.L. 1991. A nationwide resurvey of the factors affecting the breeding of Aedes aegypti (L.) and Aedes albopictus (Skuse) (Diptera: Culicidae) in urban towns of Peninsular Malaysia- 1988 – 1989. Tropical Biomedicine 8: 157-160.
Lee, H.L. 1992a. Aedes ovitrap and larval survey in several suburban communities in Selangor, Malaysia. Mosquito-Borne Diseases Bulletin 9(1): 9-15.
Lee, H.L. 1992b. Sequential sampling: its application in ovitrap surveillance of Aedes (Diptera: Culicidae) in Selangor, Malaysia. Tropical Biomedicine 9: 29-34.
Lee, H.L. 2000. Aedes: mosquitoes that spread dengue fever. In: Mosquitoes and mosquito-borne diseases, (Eds. F.S.P. Ng & H.S. Yong). pp. 45-61.
Lim, K.W., Norzahira, R., Sing, K.W., Wong, H.M., Chew, H.S., Firdaus, R., Cheryl, J.A., Nazni, W.A., Lee, H.L., Andrew, M. & Seshadri, V. 2011. Ovitrap surveillance of dengue and chikungunya vectors in several suburban residential areas in Peninsular Malaysia. Dengue Bulletin 35: 153-160.
Marques, C.C., Marques, G.R., de Brito, M., dos Santos Neto, L.G., Ishibashi Vde, C. & Gomes, Fde, A. 1993. Comparative study of larval and ovitrap efficacy for surveillance of dengue and yellow fever vectors. Revista de Saude Publica 27(4): 237–241.
Masnita, M.Y., Nazri, C.D., Rodziah, I. & Ariza, Z. 2018. Assessing the temporal distribution of dengue vectors mosquitoes and its relationship with weather variables. Serangga 23(1): 112-125.
Ministry of Health Malaysia. 2020. Kenyataan Akhbar Ketua Pengarah Kesihatan Malaysia: Situasi semasa demam denggi, Zika dan chikungunya di Malaysia (Bagi Minggu 51/2020 dari 13 Disember hingga 19 Disember 2020). Putrajaya: Disease Control Division Ministry of Health, Malaysia.
Nor Aliza, A.R., Harvie, S., Nur Ain Mardiah, R., Lela, S., Siti Fairouz, I., Razitasham, S. & Marlini, O. 2019. Detection of transovarial dengue viruses in Aedes albopictus from selected localities in Kuching and Samarahan divisions, Sarawak, Malaysia by reverse transcription polymerase chain reaction (RT-PCR). Serangga 24(2): 145-158.
Norzahira, R., Hidayatulfathi, O., Wong, H.M., Cheryl, A., Firdaus, R., Chew, H.S., Lim, K.W., Sing, K.W., Mahathavan, M., Nazni, W.A., Lee, H.L., Vasan, S.S., McKemey, A. & Lacroix, R. 2011. Ovitrap surveillance of the dengue vectors, Aedes (Stegomyia) aegypti (L.) and Aedes (Stegomyia) albopictus Skuse in selected areas in Bentong, Pahang, Malaysia. Tropical Biomedicine 28(1): 48–54.
Rawlins. S.C., Martinez, R., Wiltshire, S. & Legall, G. 1998. A comparison of surveilance systems for the dengue vector Aedes aegypti in port of Spain, Trinidad. Journal of the American Mosquito Control Association 14(2): 131-136.
Rozilawati, H., Tanaselvi, K., Nazni, W.A., Mohd Masri, S., Zairi, J., Adanan, C.R. & Lee, H. L. 2015. Surveillance of Aedes albopictus Skuse breeding preference in selected dengue outbreak localities, peninsular Malaysia. Tropical Biomedicine 32(1): 49-64.
Saifur, R.G.M., Hassan, A.A., Dieng, H., Ahmad, H., Che Salmah, M.R., Satho, T., Saad., A. R. & Vargas, R. E. M. 2012. Update on temporal and spatial abundance of dengue vectors in Penang, Malaysia. Journal of the American Mosquito Control Association 28(2): 84-92.
Salazar, F., Angeles, J., Sy, A.K., Inobaya, M.T., Aguila, A., Toner, T., Bangs, M.J., Thomsen, E., Paul, R.E. 2019. Efficacy of the In2Care® auto-dissemination device for reducing dengue transmission: Study protocol for a parallel, two-armed cluster randomised trial in the Philippines. Trials 20: 269.
Saleeza, S.N.R., Norma-Rashid, Y. & Sofian–Azirun, M. 2011. Mosquitoes larval breeding habitat in urban and suburban areas, Peninsular Malaysia. International Journal of Biological, Biomolecular, Agricultural, Food and Biotechnological Engineering 5(10): 599-603.
Skae, F. 1902. Dengue fever in Penang. British Medical Journal 2: 1581.
Tham, A.S. 2000. Surveillance of mosquitoes. In Ng, F.S.P. & Yong, H.S. (eds.). Mosquitoes and Mosquito-Borne Diseases, pp. 167-183. Malaysia: Academy of Sciences Malaysia.
Wan Fatma, Z. & Aminoddin, S. 2019. Population abundance of Aedes albopictus and Culex quinquefasciatus in 24 hours cycle in residential areas, Penang using different trapping methods. Serangga 24(1): 17-41.
Wan-Norafikah, O., Khairul-Hazim, K., Nurul-Najiyah, M., Siti-Nurdiyana, M., Nur-Syaahidah, K. & Atiqah-Nazirah, R. 2020. Dispersal of Aedes aegypti L. and Aedes albopictus Skuse (Diptera: Culicidae) in a university campus in Selangor, Malaysia. Serangga 25(2): 123-131.
Wan-Norafikah, O., Nazni, W.A., Noramiza, S., Shafa‘ar-Ko‘ohar, S., Heah, S.K., Nor-Azlina, A.H., Abdullah, A.G., Sa‘diyah, I., Khairul-Asuad, M. & Lee, H.L. 2011. Ovitrap surveillance and mixed infestation of Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) in northern region and southern region of Malaysia. Health and the Environment Journal 2(1): 1-5.
Wan-Norafikah, O., Nazni, W.A., Noramiza, S., Shafa’ar-Ko’ohar, S., Heah, S.K., Nor-Azlina, A.H., Khairul-Asuad, M. & Lee, H.L. 2012. Distribution of Aedes mosquitoes in three selected localities in Malaysia. Sains Malaysiana 41(10): 1309-1313.
Yap, H.H., Lee, C.Y., Chong, N.L., Foo, A.E.S. & Lim, M.P. 1995. Oviposition site preference of Aedes albopictus in the laboratory. Journal of the American Mosquito Control Association 11(1): 128-132.
Zhaki, Z.A., Dom, N.C. & Alhothily, I.A. 2019. Study on the distribution and abundance of Aedes aegypti and Aedes albopictus in different environment settings for high-rise buildings. Malaysian Journal of Medicine and Health Sciences 15(4): 91-98
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