Prevalence and risks for fishborne zoonotic trematode infections in domestic animals in a highly endemic area of North Vietnam

Anh, Nguyễn Thị Lan; Phuong, Nguyen Thi; Johansen, Maria Vang; Murrell, K. D.; Van, Phan Thi; Dalsgaard, Anders; Thu, Luong To; Thamsborg, Stig Milan

doi:10.1016/j.actatropica.2009.07.027

Cited by 50 publications

(25 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further, it should be noted we do not know to what extend people infected with FZT obtained such infection from the consumption of raw dishes of fish originating from aquaculture or wild-caught. Nguyen et al [9], [10] found that dogs, cats and pigs are important sources of FZT eggs, in particular minute intestinal fluke eggs, to the environment in two endemic areas in Northern Vietnam. Cats and dogs deposit their stool freely, while pig manure is used as fertilizer for fish ponds and rice fields.…”

Section: Discussionmentioning

confidence: 99%

“…‘One Health’ is a concept focusing on integration between human and veterinary medicine. This may be a useful concept if interventions such as discouraging the use of raw fish for animal feed, discouraging the use of untreated pig manure as fertilizer in ponds and regular anthelmintic treatment of roaming domestic animals are to be included in the control of FZT [10]. FZT has, apart from being a zoonosis, many similarities with other Neglected Tropical Diseases which coexist in the same population.…”

Section: Discussionmentioning

confidence: 99%

“…In Northern Vietnam, there is a mix of C. sinensis and MIF, especially Haplorchis spp., in humans [7], [8]. Studies from the same area have revealed high prevalence of different MIF-species, especially Haplorchis spp., in dogs, cats and pigs, suggesting that domestic animals could play an important role as reservoir hosts and in the transmission of FZT [9], [10].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High Reinfection Rate after Preventive Chemotherapy for Fishborne Zoonotic Trematodes in Vietnam

et al. 2014

Self Cite

View full text Add to dashboard Cite

BackgroundThe World Health Organization aims for complete morbidity control of fishborne zoonotic trematodes (FZT) in endemic areas by 2020. The main intervention tool for achieving this goal is regular use of preventive chemotherapy by offering praziquantel to those at risk in endemic areas. The purpose of this study was to investigate the effectiveness of preventive chemotherapy to control FZT in an endemic area in Northern Vietnam.Methodology and principle findingsWe followed a cohort of 396 people who fulfilled the criteria for receiving preventive chemotherapy. Stool samples were examined by Kato-Katz technique for the presence of trematode eggs before, and two, 16, 29 and 60 weeks after preventive chemotherapy. The prevalence of trematode eggs in stool was 40.2% before, 2.3% two weeks after and increased to a cumulative prevalence of 29.8% sixty weeks after preventive chemotherapy.ConclusionsThe effectiveness of preventive chemotherapy as a main component in control of FZT is not well documented in most endemic areas. We found a high reinfection rate within the first year after preventive chemotherapy. Since these trematodes are zoonoses, preventive chemotherapy may not have sufficient impact alone on the transmission to have a lasting effect on the prevalence. Animal reservoirs and farm management practices must be targeted to achieve sustainable control of fishborne zoonotic trematode infections, hence control programs should consider a One Health approach.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High Reinfection Rate after Preventive Chemotherapy for Fishborne Zoonotic Trematodes in Vietnam

et al. 2014

Self Cite

View full text Add to dashboard Cite

show abstract

“…Nam Dinh Province also has a high human and domestic animal FZT prevalence ( 3 , 4 , 13 ), making fecal waste from these hosts a highly risky fertilizer. To develop effective control interventions, more research on methods to inactivate FZT eggs in manure must be conducted.…”

Section: Discussionmentioning

confidence: 99%

“…The epidemiology of FZTs is complex because humans and reservoir hosts, such as dogs, cats, pigs, and fish-eating birds, harbor egg-shedding adult stages ( 12 , 13 ). These hosts are infected by consumption of raw, inadequately cooked, or pickled fish.…”

mentioning

confidence: 99%