Your search found 8 records
1 Klinkenberg, Eveline; Amerasinghe, Felix P.. 2006. Risk assessment: malaria in urban and peri-urban agriculture. In Boischio, A. Clegg, A.; Mwagore, D. (Eds.). Health Risks and Benefits of Urban and Peri-urban Aagriculture and Livestock (UA) in Sub-Saharan Africa Workshop, June 2003: resource papers and workshop proceedings. Resource paper 3. Ottawa, Canada: International Development Research Centre (IDRC). pp.35-46. (Urban Poverty and Environment Series Report 1)
(Location: IWMI-HQ Call no: 614.532 G110 KLI Record No: H033293)
http://www.google.lk/url?sa=t&rct=j&q=%22Risk+assessment%3A+malaria+in+urban+and+peri-urban+agriculture.%22&source=web&cd=4&ved=0CFMQFjAD&url=http%3A%2F%2Fweb.idrc.ca%2Fuploads%2Fuser-S%2F11661323001Final_Benefits_of_Urban_Ag_in_SSA.doc&ei=PVYmT_jRM4K3rAeU_ai3Ag&usg=AFQjCNFCyjHgbztbbMxik82ttVOfHOoOgw
https://vlibrary.iwmi.org/pdf/H033293.pdf
https://vlibrary.iwmi.org/pdf/H033293.pdf
(0.22 MB)
2 Klinkenberg, Eveline; van der Hoek, Wim; Amerasinghe, Felix P.. 2004. A malaria risk analysis in an irrigated area in Sri Lanka. Acta Tropica, 89(2):215-225.
Malaria ; Waterborne diseases ; Disease vectors ; Risks ; Maps ; GIS ; Public health ; Irrigated farming / Sri Lanka / Uda Walawe
(Location: IWMI HQ Call no: IWMI 616.9362 G744 KLI Record No: H034015)
3 Herrel, N.; Amerasinghe, Felix P.; Ensink, Jeroen; Mukhtar, M.; van der Hoek, Wim; Konradsen, F. 2004. Adult anopheline ecology and malaria transmission in irrigated areas of South Punjab, Pakistan. Medical and Veterinary Entomology, 18:141-152.
Malaria ; Disease vectors ; Waterborne diseases ; Ecology ; Environmental effects ; Surface irrigation ; Irrigation canals ; Waterlogging ; Villages ; Households / Pakistan / Punjab / Hakra
(Location: IWMI-HQ Call no: IWMI 616.9362 G730 HER Record No: H034768)
4 Klinkenberg, Eveline; Konradsen, Flemming; Herrel, N.; Mukhtar, M.; van der Hoek, Wim; Amerasinghe, Felix P.. 2004. Malaria vectors in the changing environment of the southern Punjab, Pakistan. Transactions of the Royal Society of Tropical Medicine and Hygiene, 98(7):442-449.
(Location: IWMI-HQ Call no: IWMI 613. G730 KLI Record No: H034259)
The Pakistani Punjab experienced several devastating malaria epidemics during the twentieth century. Since the 1980s, however, malaria has been at a low ebb, while in other areas of Pakistan and neighbouring India malaria is on the increase. This raises the question of whether transmission in the Pakistani Punjab may have been in uenced by a change in vector species abundance or composition, possibly induced by environmental changes. To investigate this question, routinely-collected government entomological data for the period 1970 to 1999 for the district of Bahawalnagar, in the Indus Basin irrigation system in the southern Punjab, was analysed. Our ndings suggest that Anopheles stephensi has increased in prevalence and became more common than A. culicifacies during the 1980s. This shift in species dominance may be due to the large-scale ecological changes that have taken place in the Punjab, where irrigation-induced waterlogging of soil with related salinization has created an environment favourable for the more salt-tolerant A. stephensi. Some biotypes of A. stephensi are suspected of being less ef cient vectors and, therefore, the shift in species dominance might have played a role in the reduced transmission in the Punjab, although further research is needed to investigate the effect of other transmission-in uencing factors.
5 Amerasinghe, Felix P.; Matsuno, Y.; de Silva, R. I.; Piyankarage, Sujeewa C.; Bambaradeniya, C. N. B.; Mallawatanthri, A. 2002. Impact of irrigation on water quality, fish and avifauna of three coastal lagoons in Southern Sri Lanka. [Abstract only]. In Ali, A.; Rawi, C. S. M.; Mansor, M.; Nakamura, R.;Ramakrishna, S.; Mundkur, T. (Eds.), The Asian wetlands: Bringing partnerships into good wetlands practices. Proceedings of the Asian Wetland Symposium, Penang, Malaysia, 27-30 August 2001. pp.183.
Water quality ; Irrigation effects ; Fish ; Lagoons / Sri Lanka / Kirindi Oya / Bundala Lagoon / Embilikala Lagoon / Malala Lagoon
(Location: IWMI-HQ Call no: IWMI 631.7.5 G744 AME Record No: H034960)
(6.14 MB)
6 Bambaradeniya, C. N. B.; Amerasinghe, Felix P.. 2003. Biodiversity associated with the rice field agroecosystem in Asian countries: a brief review. Colombo, Sri Lanka: International Water Management Institute (IWMI). iii, 24p. (IWMI Working Paper 063) [doi: https://doi.org/10.3910/2009.193]
Biodiversity ; Rice ; Paddy fields ; Ecosystems ; Wetlands ; Crop-based irrigation ; Pests ; Disease vectors / Asia
(Location: IWMI-HQ Call no: IWMI 574.5 G570 BAM Record No: H034996)
(451 KB)
7 Konradsen, Flemming; van der Hoek, Wim; Amerasinghe, Felix P.; Mutero, Clifford; Boelee, Eline. 2004. Engineering and malaria control: learning from the past 100 years. Acta Tropica, 89(2):99-108.
Malaria ; History ; Disease vectors ; Waterborne diseases ; Health ; Irrigation systems / Asia / India / Pakistan / Malaysia / Philippines / Sri Lanka / Klang / Port Swettenham
(Location: IWMI-HQ Call no: IWMI 631.7.5 G000 BOE Record No: H030208)
Traditionally, engineering and environment-based interventions have contributed to the prevention of malaria in Asia. However, with the introduction ofDDTand other potent insecticides, chemical control became the dominating strategy. The renewed interest in environmental-management-based approaches for the control of malaria vectors follows the rapid development of resistance by mosquitoes to the widely used insecticides, the increasing cost of developing new chemicals, logistical constraints involved in the implementation of residual-spraying programs and the environmental concerns linked to the use of persistent organic pollutants. To guide future research and operational agendas focusing on environmental-control interventions, it is necessary to learn from the successes and failures from the time before the introduction of insecticides. The objective of this paper is to describe the experiences gained in Asia with early vector control interventions focusing on cases from the former Indian Punjab, Malaysia and Sri Lanka. The paper deals primarily with the agricultural engineering and land and water management vector control interventions implemented in the period 1900–1950. The selected cases are discussed in the wider context of environment-based approaches for the control of malaria vectors, including current relevance. Clearly, some of the interventions piloted and implemented early in the last century still have relevance today but generally in a very site-specific manner and in combination with other preventive and curative activities. Some of the approaches followed earlier on to support implementation would not be acceptable or feasible today, from a social or environmental point of view. In Boelee, E.; Konradsen, F.; van der Hoek, W. (Eds.), Malaria in irrigated agriculture: Papers and abstracts for the SIMA Special Seminar at the ICID 18th International Congress on Irrigation and Drainage, Montreal, 23 July 2002. Colombo, Sri Lanka: IWMI. pp.5-14
8 Amerasinghe, Priyanie H.; Alifrangis, M.; van der Hoek, Wim; Wirtz, R. A.; Amerasinghe, Felix P.; Konradsen, Flemming. 2005. Optimizing malarial epidemiological studies in areas of low transmission. Southeast Asian Journal of Tropical Medicine and Public Health, 36(5):1079-1084.
Malaria ; Epidemics ; Waterborne diseases ; Analysis ; Surveys ; Villages / Sri Lanka / Mahameegaswewa
(Location: IWMI HQ Call no: IWMI 614.532 G744 AME Record No: H041472)
Malaria risk factor studies have traditionally used microscopy readings of blood slides as the measure of malaria infection in humans, although alternatives are available. There is the need for an assessment of how the use of these alternative diagnostic approaches will influence the efficiency and significance of epidemiological studies. In an area of Sri Lanka with known risk factors for malaria, two cross-sectional surveys were done at the start and at the peak of transmission season. Microscopy was compared with enzyme-linked immunosorbent assays (ELISA) and polymerase chain reaction (PCR). The major risk factor in this area was the location of houses relative to confirmed vector breeding sites. At the peak of the transmission season, the results pointed in the same direction, irrespective of the diagnostic method used. However, the importance of distance from the breeding site was not statistically significant when microscopy was used, which can be explained by the lower prevalence of microscopy positivity in comparison to the prevalence of ELISAand PCR-positivity. This study suggests that in low-transmission areas, such as Sri Lanka, smaller sample sizes can be used for epidemiological research studies using PCR instead of microscopy to estimate parasite prevalence. This efficiency gain has to be weighed against the higher cost and complexity of the PCR. PCR cannot replace microscopy as the standard diagnostic procedure at the field level. ELISA is not directly comparable with microscopy and PCR but it can also be a useful tool in malaria epidemiological studies. This study indicates that cross-sectional surveys are only efficient if they take place during peak transmission season. Cross sectional surveys currently implemented by the Sri Lankan government in response to local malaria outbreaks can form the basis for valid epidemiological studies and be used for the generation of malaria risk maps if samples were also analyzed using PCR.
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