Publications

transmission ecology of taeniid larval cestodes in rodents in sweden, a low endemic area for echinococcus multilocularis.	although local prevalence of echinococcus multilocularis may be high, this zoonotic parasite has an overall low prevalence in foxes and rodents in sweden. to better understand opportunities for e. multilocularis transmission in the swedish environment, the aim of this study was to investigate other taeniid cestodes and to relate observed patterns to e. multilocularis. cestode parasites were examined in fox feces and rodents caught in different habitats from four regions of sweden. arvicola amphi ...	2017	28274289
support for targeted sampling of red fox (vulpes vulpes) feces in sweden: a method to improve the probability of finding echinococcus multilocularis.	localized concentrations of echinococcus multilocularis eggs from feces of infected red fox (vulpes vulpes) can create areas of higher transmission risk for rodent hosts and possibly also for humans; therefore, identification of these areas is important. however, in a low prevalence environment, such as sweden, these areas could be easily overlooked. as part of a project investigating the role of different rodents in the epidemiology of e. multilocularis in sweden, fox feces were collected seaso ...	2016	27899131
first identification of echinococcus multilocularis in rodent intermediate hosts in sweden.	echinococcus multilocularis is a zoonotic tapeworm with a sylvatic lifecycle and an expanding range in europe. monitoring efforts following its first identification in 2011 in sweden have focused on the parasite's definitive host, the red fox (vulpes vulpes). however, identifying rodent intermediate hosts is important to recognize opportunities for parasite transmission. during 2013-2015, livers from a total of 1566 rodents from four regions in sweden were examined for e. multilocularis metacest ...	2016	27054089
a real-time multiplex-nested pcr system for coprological diagnosis of echinococcus multilocularis and host species.	a hybridization probe-based real-time multiplex-nested pcr system was developed for the simultaneous detection of echinococcus multilocularis and host species directly from faecal samples. species identification was determined by melting curve analysis. specificity was assessed by using dna extracted from various cestodes (e. multilocularis, echinococcus granulosus (g1), echinococcus ortleppi, echinococcus canadensis (g6, g7), taenia crassiceps, taenia hydatigena, taenia mustelae, taenia pisifor ...	2011	21327991
age, season and spatio-temporal factors affecting the prevalence of echinococcus multilocularis and taenia taeniaeformis in arvicola terrestris.	taenia taeniaeformis and the related zoonotic cestode echinococcus multilocularis both infect the water vole arvicola terrestris. we investigated the effect of age, spatio-temporal and season-related factors on the prevalence of these parasites in their shared intermediate host. the absolute age of the voles was calculated based on their eye lens weights, and we included the mean day temperature and mean precipitation experienced by each individual as independent factors.	2011	21247427
fox defecation behaviour in relation to spatial distribution of voles in an urbanised area: an increasing risk of transmission of echinococcus multilocularis?	urbanisation of alveolar echinococcosis is a new phenomenon that has been highlighted during the last few decades. it has thus become necessary to understand the dynamics of transmission of echinococcus multilocularis in urbanised areas. spatial heterogeneity of infection by e. multilocularis has been explained as the result of a multifactorial dependence of the transmission in which the factors depend on the scale of the investigation. the aim of this study was to assess, in an urbanised area, ...	2011	20833171
predator dietary response to prey density variation and consequences for cestode transmission.	the functional response of predators to prey density variations has previously been investigated in order to understand predation patterns. however, the consequences of functional response on parasite transmission remain largely unexplored. the rodents microtus arvalis and arvicola terrestris are the main prey of the red fox vulpes vulpes in eastern france. these species are intermediate and definitive hosts of the cestode echinococcus multilocularis. we explored the dietary and contamination re ...	2010	20461413
extraintestinal helminths of the common vole (microtus arvalis) and the water vole (arvicola terrestris) in western austria (vorarlberg).	between september and december 2004, a total of 411 voles (318 common voles and 93 water voles) were caught in the austrian province of vorarlberg (lustenau, hohenems, and dornbirn) and were examined by macroscopy, microscopy, and molecular biological analysis to determine the presence and extent of medically important extraintestinal helminths. the following extraintestinal helminth species were detected: taenia taeniaeformis (liver), calodium hepaticum (liver), and echinococcus multilocularis ...	2010	20148339
rodents as shared indicators for zoonotic parasites of carnivores in urban environments.	rodents are shared intermediate or paratenic hosts for echinococcus multilocularis, toxocara spp. and toxoplasma gondii, and may serve as valuable indicators for assessing the occurrence and the level of environmental contamination and infection pressure with free-living stages of these zoonotic parasites. we investigated 658 non-commensal rodents for parasite infections in the canton of geneva, switzerland. the prevalence of infection with e. multilocularis was highest in arvicola terrestris ca ...	2009	19154652
infection of foxes by echinococcocus multilocularis in urban and suburban areas of nancy, france: influence of feeding habits and environment.	this study evaluated the impact of biological and environmental factors on the infection of red foxes (vulpes vulpes) by echinococcus multilocularis in an endemic area of north-east france. from january 2004 to april 2006, 127 foxes were examined for e. multilocularis and their stomach contents analysed. the effect of year, season, age, sex and urbanisation level on e. multilocularis presence was estimated using a general linear model (glm) with logit link, (i.e. logistic regression). urbanisati ...	2008	18416250
ecological and biological factors involved in the transmission of echinococcus multilocularis in the french ardennes.	in order to identify the respective importance of the ecological and biological factors involved in the transmission of echinococcus multilocularis, we estimated grassland vole intermediate host (microtus sp. and arvicola terrestris) population densities, in relation to the diet of the definitive host (red fox, vulpes vulpes) and with the prevalence of e. multilocularis in the fox population. the study was conducted in the ardennes, north-eastern france, which is an area with a high incidence of ...	2008	18394209
echinococcus multilocularis in belgium: prevalence in red foxes (vulpes vulpes) and in different species of potential intermediate hosts.	echinococcus multilocularis causes a rare but potentially lethal zoonotic infection in humans. this tapeworm is known to be endemic in foxes in several countries of western and central europe. in western europe, the common vole (microtus arvalis) and the water vole (arvicola terrestris) are considered to be the most important intermediate host species of this cestode whereas the red fox is by far the most important final host. the purpose of this study was to provide data on the prevalences in w ...	2008	18164551
[echinococcus multilocularis in grisons: distribution in foxes and presence of potential intermediate hosts].	the southern border of the european endemic area of echinococcus multilocularis runs along the alpine crest. this endemic transition area was analysed in the canton grisons on a small spatial scale. a total of 543 foxes originating from 10 areas north and 4 areas south of the main alpine divide were investigated. parasites were isolated using the sedimentation and counting technique on intestinal contents. the mean prevalence of e. multilocularis was 6.4% with significant differences between dif ...	2006	17024979
epidemiology of alveolar echinococcosis in southern cantal, auvergne region, france.	alveolar echinococcosis (ae) is a helminth zoonosis which is encountered only in the northern hemisphere. in central france, the auvergne region represents the most western and southern extension of this helminthiasis. in 1999, a human case of ae was diagnosed in the southern part of the cantal department, where ae was supposed absent, and an epidemiological survey was subsequently carried out. the transmission of the zoonosis in the sylvatic and peridomestic definitive hosts was studied, as wel ...	2004	15469627
an experimental field approach to parasitism and immune defence in voles.	the fox tapeworm echinococcus multilocularis is typically perpetuated in a cycle with red foxes as definitive hosts and various rodent species as intermediate hosts. in this study, foxes were baited with a highly efficient drug against cestodes (praziquantel) in 5 blocks of 1 km2. voles, arvicola terrestris, the most abundant intermediate host species, were trapped in the 5 baited blocks and in 5 non-baited control blocks. baiting the foxes reduced the prevalence of e. multilocularis in fox faec ...	2004	15267116
co-occurrence of metacestodes of echinococcus multilocularis and taenia taeniaeformis (cestoda) in arvicola terrestris (rodentia) in france.		2003	14560979
echinococcus multilocularis: secondary poisoning of fox population during a vole outbreak reduces environmental contamination in a high endemicity area.	this paper describes the role of fox population level on echinococcus multilocularis infection in foxes in a highly endemic area in eastern france. fox population level was monitored by spotlight survey at le souillot from 1989 to 2000, and from 1992 to 2000 at chemin, a control site located in a low endemic area. the infection level of the fox population was estimated at le souillot from winter 1995 to winter 1999 using a coproantigen elisa performed on faeces collected in the field. population ...	2003	12906878
spatial and temporal aspects of urban transmission of echinococcus multilocularis.	high prevalences of echinococcus multilocularis have been reported from foxes of the city of zurich, switzerland. in order to characterize transmission in urban areas, a coproantigen elisa was evaluated for diagnosing the infection in fox faecal samples collected in the environment. in addition, trapped rodents were investigated for the presence of metacestodes. faecal samples could reliably be classified as being of fox origin by assessing physical properties as shown by the different parasite ...	2002	12118719
is high prevalence of echinococcus multilocularis in wild and domestic animals associated with disease incidence in humans?	we investigated a focus of highly endemic echinococcus multilocularis infection to assess persistence of high endemicity in rural rodents, explore potential for parasite transmission to domestic carnivores, and assess (serologically) putative exposure versus infection frequency in inhabitants of the region. from spring 1993 to spring 1998, the prevalence of e. multilocularis in rodents was 9% to 39% for arvicola terrestris and 10% to 21% for microtus arvalis. from june 1996 to october 1997, 6 (7 ...	2001	11384517
high prevalence of echinococcus multilocularis in urban red foxes (vulpes vulpes) and voles (arvicola terrestris) in the city of zürich, switzerland.	over a period of 26 months from january 1996 to february 1998, 388 foxes from the city of zürich, switzerland, were examined for intestinal infections with echinococcus multilocularis and other helminths. the prevalence of e. multilocularis in foxes sampled during winter increased significantly from 47% in the urban to 67% in the adjacent recreational area, whereas prevalence rates of other helminths were similar in both areas. seasonal differences in the prevalence of e. multilocularis were onl ...	2000	10726275
water vole (arvicola terrestris scherman) density as risk factor for human alveolar echinococcosis.	concern is growing in europe about alveolar echinococcosis (ae) with the increase in grassland rodent and red fox populations, intermediate and definitive hosts for echinococcus multilocularis, respectively. the objective of this study was to assess the influence of rodent densities on human ae distribution. spatial poisson regression analyses were performed with geomorphologic features, landscape composition, climatic characteristics, and water vole density as independent variables. the outcome ...	1999	10548289
[infestation of water voles (arvicola terrestris) with metacestodes of echinococcus multilocularis in the canton freiburg (switzerland)].	the results of an investigation on echinococcus multilocularis-metacestodes in european water voles (arvicola terrestris) are shown. the investigation materials were 28 water voles captured in schermann-traps on a meadow in the canton of fribourg and subsequently maintained in laboratory cages. the animals were patho-anatomically and histo-pathologically examined, a part of them additionally with an e. multilocularis-specific direct immunofluorescence-assay and/or a polymerase-chain-reaction. ra ...	1997	9381111
investigations on a swiss area highly endemic for echinococcus multilocularis.	anecdotal information suggested that a focus of hyperendemicity may be present in a small area of the canton of fribourg in switzerland. therefore, the prevalence of e. multilocularis was assessed both in the fox and the rodent population over a two-season-period. a high prevalence ranging between 47% and 56% was consistently determined in the fox population. an arvicola terrestris population was infected at 39% in the first season of investigation and at 11% in the following season. a subsequen ...	1996	8688861
arvicola terrestris an intermediate host of echinococcus multilocularis in france: epidemiological consequences.		1982	6761290
[detection of the larva of taenia multilocularis in 2 voles (microtus arvalis and clethrionomys glareolus) in a focus of alveolar echinococcosis in the massif central (france)].	small wild rodents were collected and examined during 1983-1984 to investigate parasite-host relationships of echinococcus multilocularis in one habitat suitable for red foxes of auvergne (france). the natural infestation of the liver of two different voles, microtus arvalis and clethrionomys glareolus, by the larval stage of the cestode is recorded for the first time. in the both cases, the larvae were fully developed and numerous protoscolices were present with some calcareous corpuscules; the ...	1984	6440675
[the auvergnan focus of alveolar echinococcosis. research on the intermediate host, description of the lesions].	echinococcus multilocularis larvae occurred in 23 (2.44%) of the 943 adult vole rats (arvicola terrestris scherman shaw, mammal microtidae) collected in the mountanous center of france (massif central, departments of puy-de-dôme and cantal, province of auvergne) and obtained from august 1981 to aug. 1982 in seven different localities. according to this localities, the average percentage of parasitized voles changes from zero to 4.65%; according to the month of the year, these percentages change ...	1983	6362536
[hepatic larvae of cestode parasites of the vole rat arvicola terrestris in auvergne (france)].	the autopsy of 943 vole rats arvicola terrestris scherman shaw (mammal microtidae) from auvergne (departments of puy-de-dôme and cantal) obtained for the year 1981 and 1982 shows evidence of four different species of hepatic cestode larvae. cysticercus fasciolaris occurred in 37 (3.92%), echinococcus multilocularis in 23 (2.44%), c. tenuicollis in 11 (1.16%) and c. laticollis in 10 (1.06%). c. longicollis occurred in one (0.10%) as parasite of the abdominal cavity. there is usually just one larv ...	1983	6362535
[intermediate hosts of echinococcus multilocularis in northeastern france. description of lesions found in 3 naturally infested rodent species].	the authors describe lesions of echinococcus multilocularis larvae found in one of 476 clethrionomys glareolus and one of 16 arvicola terrestris examined from lorraine and in four microtus arvalis from jura. the receptivity of each of these host-species is discussed.	1986	3524402
life cycles of echinococcus multilocularis in relation to human infection.	the cycle of echinococcus multilocularus in natural and synanthropic hosts was investigated during 10 yr in an endemic focus of alveolar hydatid disease in the massif central of france. the natural cycle, involving red foxes, vulpes vulpes, and voles, arvicola terrestris, existed immediately surrounding a village in which human cases of alveolar hydatid disease occurred. both foxes and free-ranging dogs could serve as the source of infection for the human population.	1991	1992084