Schistosomiasis in Indonesia: Past and present

Garjito, Triwibowo Ambar; Sudomo, M.; Abdullah, .; Dahlan, Muhammad; Nurwidayati, Anis

doi:10.1016/j.parint.2008.04.008

Cited by 33 publications

(17 citation statements)

References 2 publications

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“…Schistosoma japonicum , the causative agent of Asian schistosomiasis, is endemic to the People's Republic of China, the Philippines and small pockets of Indonesia [1]–[7]. Unlike African schistosomiasis, mainly caused by S. mansoni and S. haematobium , schistosomiasis japonica is a zoonosis and it is estimated that over 40 mammalian species, comprising 28 genera and 7 orders of wild and domestic animals, can act as reservoirs and harbour S. japonicum infection [8].…”

Section: Introductionmentioning

confidence: 99%

A Novel Procedure for Precise Quantification of Schistosoma japonicum Eggs in Bovine Feces

Gordon

et al. 2012

PLoS Negl Trop Dis

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Schistosomiasis japonica is a zoonosis with a number of mammalian species acting as reservoir hosts, including water buffaloes which can contribute up to 75% to human transmission in the People's Republic of China. Determining prevalence and intensity of Schistosoma japonicum in mammalian hosts is important for calculating transmission rates and determining environmental contamination. A new procedure, the formalin–ethyl acetate sedimentation-digestion (FEA–SD) technique, for increased visualization of S. japonicum eggs in bovine feces, is described that is an effective technique for identifying and quantifying S. japonicum eggs in fecal samples from naturally infected Chinese water buffaloes and from carabao (water buffalo) in the Philippines. The procedure involves filtration, sedimentation, potassium hydroxide digestion and centrifugation steps prior to microscopy. Bulk debris, including the dense cellulosic material present in bovine feces, often obscures schistosome eggs with the result that prevalence and infection intensity based on direct visualization cannot be made accurately. This technique removes nearly 70% of debris from the fecal samples and renders the remaining debris translucent. It allows improved microscopic visualization of S. japonicum eggs and provides an accurate quantitative method for the estimation of infection in bovines and other ruminant reservoir hosts. We show that the FEA-SD technique could be of considerable value if applied as a surveillance tool for animal reservoirs of S. japonicum, particularly in areas with low to high infection intensity, or where, following control efforts, there is suspected elimination of schistosomiasis japonica.

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Section: Introductionmentioning

confidence: 99%

A Novel Procedure for Precise Quantification of Schistosoma japonicum Eggs in Bovine Feces

Gordon

et al. 2012

PLoS Negl Trop Dis

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“…This is especially true for Schistosoma japonicum , a multi-host parasite which remains endemic in China [2], the Philippines [3] and parts of Indonesia [4]. In China, after over 50 years of integrated control efforts, including health education, chemotherapy, mollusciciding, environmental management, and sanitation improvement, the disease remains endemic in 110 (out of 433) counties within seven (out of 12) provinces, with an estimated 0.73 million infected humans in 2004 [2].…”

Section: Introductionmentioning

confidence: 99%

Transmission of Schistosoma japonicum in Marshland and Hilly Regions of China: Parasite Population Genetic and Sibship Structure

et al. 2010

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The transmission dynamics of Schistosoma japonicum remain poorly understood, as over forty species of mammals are suspected of serving as reservoir hosts. However, knowledge of the population genetic structure and of the full-sibship structuring of parasites at two larval stages will be useful in defining and tracking the transmission pattern between intermediate and definitive hosts. S. japonicum larvae were therefore collected in three marshland and three hilly villages in Anhui Province of China across three time points: April and September-October 2006, and April 2007, and then genotyped with six microsatellite markers. Results from the population genetic and sibling relationship analyses of the parasites across two larval stages demonstrated that, within the marshland, parasites from cattle showed higher genetic diversity than from other species; whereas within the hilly region, parasites from dogs and humans displayed higher genetic diversity than those from rodents. Both the extent of gene flow and the estimated proportion of full-sib relationships of parasites between two larval stages indicated that the cercariae identified within intermediate hosts in the marshlands mostly came from cattle, whereas in the hilly areas, they were varied between villages, coming primarily from rodents, dogs or humans. Such results suggest a different transmission process within the hilly region from within the marshlands. Moreover, this is the first time that the sibling relationship analysis was applied to the transmission dynamics for S. japonicum.

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“…Also, the traces of crops that has been left for a long time, the ruins of water channel that surrounding by thick and muddy grass-grown and the outskirts of the forest protected from sunlight that is always moist with water are highly favored for O.h. lindoensis snail (Sudomo and Pretty, 2007;Garjito et al, 2008). O.h.…”

Section: Discussionmentioning

confidence: 99%

Effect of Ecological Factors on Snails Infection by Schistosoma japonicum in Central Sulawesi, Indonesia

Mardin¹,

Sardjono²,

Fitri³

et al. 2018

American Journal of Environmental Sciences

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In Central Sulawesi, Napu valley and Lindu Lake (Indonesia), Schistosoma are spread in the host snails (Oncomelania hupensis lindoensis). In the present work, the influence of ecological factors on the spreading of Schistosoma japonicum cercariae infection in the snails were analyzed. The Oncomelania hupensis lindoensis snails were collected and analyzed by ring method in the form of graphs and matrices. The results showed that, the ecological environment and such as temperature, pH, humidity, light intensity, dissolved oxygen, and salinity, as well as food, have significant effect on the increase of cercariae infected snails. These results also reflect that Schistosomiasis is still a health problem that could potentially be re-emerging diseases, especially in those areas and therefore much interesting must considered to break their cycle in nature.

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Schistosomiasis in Indonesia: Past and present

Cited by 33 publications

References 2 publications

A Novel Procedure for Precise Quantification of Schistosoma japonicum Eggs in Bovine Feces

A Novel Procedure for Precise Quantification of Schistosoma japonicum Eggs in Bovine Feces

Transmission of Schistosoma japonicum in Marshland and Hilly Regions of China: Parasite Population Genetic and Sibship Structure

Effect of Ecological Factors on Snails Infection by Schistosoma japonicum in Central Sulawesi, Indonesia

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