References of "Caron, Yannick"
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See detailAspects malacologiques du cycle de Fasciola hepatica en Belgique et en Equateur
Caron, Yannick ULg

Doctoral thesis (2015)

Fasciolosis is a zoonotic disease of ruminants and other herbivorous due to two parasite species of the genus Fasciola. If Fasciola gigantica is a tropical species, F. hepatica has a much wider geographic ... [more ▼]

Fasciolosis is a zoonotic disease of ruminants and other herbivorous due to two parasite species of the genus Fasciola. If Fasciola gigantica is a tropical species, F. hepatica has a much wider geographic distribution. Fasciola hepatica is responsible for important economic losses such as a marked reduction of milk yield and liver condemnation at the slaughterhouse. The life cycle of this platyhelminth involves an intermediate host, a gastropod mollusc belonging to the Lymnaeidae family. In temperate Europe, Galba truncatula acts as the main intermediate host of F. hepatica. A wide network project called MANSCAPE allowed the implementation of a sampling campaign conducted in more than 125 ponds throughout Belgium which revealed that other lymnaeid snails (belonging to the genus Radix) could act as secondary or alternative intermediate hosts. Some experimental infections of snails and rats permited to study the host-parasite relationships in some of these species (Radix balthica, R. labiata). Sibling species very similar to « R. peregra » seem to contain several potential candidates. Several techniques are available to detect the parasite in the snail: they are based either on microscopy or on molecular biology. A very sensitive (100 pg parasite DNA still detectable) and specific technique based on molecular biology (Multiplex PCR) was developed. This technique was used qualitatively and quantitatively to determine the intermediate host species involved in the life cycle of the liver fluke in Belgium. This study was performed in the frame of the PONDSCAPE project and prevalences of 1.31% (30/2747) and 0.16% (7/4629) were recorded for G. truncatula and R. balthica respectively. This technique was then used in Ecuador to bring some information on the intermediate host species involved in the life cycle of F. hepatica. Galba schirazensis, an invasive species in South America, was identified as a lymnaeid that could harbour a part of the life cycle of the parasite as 8.15% (86/1055) of the collected snail contained parasite DNA and 2.46% (26/1055) living larvae. These studies showed that R. balthica could have an impact on the epidemiology of F. hepatica in Belgium and that the role of G. schirazensis in Ecuador needs to be clarified. This will be discussed in this work and specially in term of co-evoultion and adpatation way. [less ▲]

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See detailNew insight in lymnaeid snails (Mollusca, Gastropoda) as intermediate hosts of Fasciola hepatica (Trematoda, Digenea) in Ecuador
Caron, Yannick ULg; Celi-Erazo, Maritza; Hurtrez-Boussès, Sylvie et al

Conference (2015, August)

Fasciolosis is a widely distributed disease in livestock in South America but knowledge about the epidemiology and the intermediate hosts are scarce in Ecuador. During 3 months, lymnaeid snails were ... [more ▼]

Fasciolosis is a widely distributed disease in livestock in South America but knowledge about the epidemiology and the intermediate hosts are scarce in Ecuador. During 3 months, lymnaeid snails were sampled (n=1482) in Pichincha province in two sites located in a highly endemic area. The snails were identified (based on morphology and ITS2 sequences) and the infection status was established through microscopic dissection and a multiplex PCR-based technique. If morphologic-based techniques were not useful to accurately named the one species collected, alignment study ascribed it to L. schirazensis. Rediae were observed in 1.75 % (26/1482) and Fasciola sp. DNA was detected in 6% (89/1482) of the collected snails. The COX1 region permitted the parasite species identification: F. hepatica. The relative sensitivity and specificity of the microscope related to the PCR results was 25.84% and 99.78% respectively. The mean size of the snails recorded positive for F. hepatica through crushing and microscopy was significantly higher than the mean size of negative snails. There was not such difference in PCR positive snails. The role of G. schirazensis as an intermediate host of F. hepatica in Ecuador is discussed and a hypothesis of an adaptation of the snail to the trematoda is formulated. For the first time, an epidemiological survey, based on molecular biology-based techniques assessed the role of lymnaeid snail in the epidemiology of fasciolosis in Ecuador. [less ▲]

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See detailFirst report od a fatal autochtonous canine Angyostrongylus vasorum infection in Belgium
Jolly, Sandra ULg; Lempereur, Laetitia ULg; Caron, Yannick ULg et al

in Parasitology International (2015), 64(1),

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See detailA case of trichurosis in gilts and fattening pigs
Caron, Yannick ULg; Delleur, Valery ULg; Cassart, Dominique ULg et al

in JMM Case Reports (2014)

Trichuris suis, also called whipworm, is a parasite of the caecum and colon distributed widely and considered as a fairly common parasite in swine. It may be responsible for porcine trichurosis ... [more ▼]

Trichuris suis, also called whipworm, is a parasite of the caecum and colon distributed widely and considered as a fairly common parasite in swine. It may be responsible for porcine trichurosis characterized by diarrhoea, anorexia, growth retardation, dehydration, emaciation and anaemia. This report presents a case of trichurosis diagnosed in a farrow-to-finish Belgian pig herd. The infection was associated with severe and persistent diarrhoea, growth retardation, emaciation and/or anaemia in 10 recently purchased gilts and in fattening pigs. In gilts, levamisole [8 mg/kg body weight] administered once per os gave a good clinical response, as diarrhoea resolved in nine gilts out of 10. In parallel, for these nine gilts, the number of eggs of T. suis/g faeces passed decreased from 12 400 to less than 100 eggs. In fattening pigs, flubendazole (1 mg/kg BW) administrated over 5 days in drinking water allowed a reduction in the number of T. suis eggs/g and was effective against diarrhoea. Although most of the time pig whipworm infections are light and asymptomatic, in some cases when large numbers of worms are present, they can cause watery to bloody diarrhoea that can lead to anaemia. This less frequent disease should not be forgotten in the differential diagnosis of persistent diarrhoea in growing pigs. [less ▲]

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See detailDetection of Angiostrongylus vasorum in the bronchoalveolar lavage fluid or faeces of coughing and healthy dogs in Belgium.
Canonne-Guibert, Morgane ULg; Roels, Elodie ULg; Caron, Yannick ULg et al

in Proceedings of the 24th Ecvim Meeting, Mainz, Germany - 4-6 September 2014 (2014, September)

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See detailFirst report of a fatal autochthonous canine Angiostrongylus vasorum infection in Belgium
Jolly, Sandra ULg; Poncelet, Luc; Lempereur, Laetitia ULg et al

in Parasitology International (2014)

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See detailLa Besnoitiose maladie réémergente en Europe
Vanvinckenroye, Caroline ULg; Caron, Yannick ULg; Losson, Bertrand ULg

in Veterinaria (Bruxelles) : Bulletin d’Information de l’Union Syndicale Vétérinaire Belge (2014)

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See detailAttaques massives de simulies et mort brutale
Caron, Yannick ULg; Losson, Bertrand ULg

in Veterinaria (Bruxelles) : Bulletin d’Information de l’Union Syndicale Vétérinaire Belge (2014)

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See detailMorphological and Molecular Characterization of Lymnaeid Snails and Their Potential Role in Transmission of Fasciola spp. in Vietnam
Bui Thi, Dung ULg; Pham Ngoc, Doanh; Dang Tat, The et al

in Korean Journal of Parasitology (2013), 51(6), 657-662

Freshwater snails of the family Lymnaeidae play an important role in the transmission of fascioliasis worldwide. In Vietnam, 2 common lymnaeid species, Lymnaea swinhoei and Lymnaea viridis, can be ... [more ▼]

Freshwater snails of the family Lymnaeidae play an important role in the transmission of fascioliasis worldwide. In Vietnam, 2 common lymnaeid species, Lymnaea swinhoei and Lymnaea viridis, can be recognized on the basis of morphology, and a third species, Lymnaea sp., is known to exist. Recent studies have raised controversy about their role in transmission of Fasciola spp. because of confusion in identification of the snail hosts. The aim of this study is, therefore, to clarify the identities of lymnaeid snails in Vietnam by a combination of morphological and molecular approaches. The molecular analyses using the second internal transcribed spacer (ITS2) of the nuclear ribosomal DNA clearly showed that lymnaeids in Vietnam include 3 species, Austropeplea viridis (morphologically identified as L. viridis), Radix auricularia (morphologically identified as L. swinhoei) and Radix rubiginosa (morphologically identified as Lymnaea sp.). R. rubiginosa is a new record for Vietnam. Among them, only A. viridis was found to be infected with Fasciola spp. These results provide a new insight into lymnaeid snails in Vietnam. Identification of lymnaeid snails in Vietnam and their role in the liver fluke transmission should be further investigated. [less ▲]

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See detailIdentification of hard ticks (Acari: Ixodidae) and seroprevalence to Theileria parva in cattle raised in North Kivu Province, Democratic Republic of Congo.
Kalume, Moise Kasereka; Saegerman, Claude ULg; Mbahikyavolo, Daniel Kambale et al

in Parasitology research (2013), 112(2), 789-97

This study aimed to identify tick species and to determine their relationship with the Theileria parva seroprevalence in cattle raised under an extensive farming system in North Kivu Province, Democratic ... [more ▼]

This study aimed to identify tick species and to determine their relationship with the Theileria parva seroprevalence in cattle raised under an extensive farming system in North Kivu Province, Democratic Republic of Congo in two agro-ecological zones namely medium (1,000-1,850 m) and high (>1,850 m) altitude. Among the 3,215 ticks collected on 482 animals, from February to April 2009, Rhipicephalus appendiculatus (64.26 %), the main vector of T. parva, was the most abundant species followed by Rhipicephalus decoloratus (35.49 %) and Amblyomma variegatum (0.25 %). The mean burden of R. appendiculatus tick per infested animal appeared significantly higher at medium (6.5 +/- 0.22 ticks) than at high (0.07 +/- 0.3 ticks) altitude (P < 0.05). However, an indirect fluorescent antibody test carried out on 450 blood samples revealed a global T. parva seroprevalence of 43 % (95 % CI: 38-47) which was not significantly (P > 0.05) different between medium (48.4 %; 95 % CI: 38-49) and high (41.9 %; 95 % CI: 35-49) altitude. These relatively low seroprevalences suggest that there is a state of endemicity to T. parva infection in the study area. The presence of the tick vector on animals was associated with an increased risk of being seropositive to T. parva infection (odds ratio = 2.04; 95 % CI: 1.8-2.3; P < 0.001). The results suggest the need for a longitudinal study to investigate the seasonal dynamics of tick species and T. parva infection. The rate of tick infection should also be evaluated in order to determine the intensity of T. parva transmission to cattle. [less ▲]

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See detailLa vermifugation régulière systématique des chevaux est-elle vraiment nécessaire ?
Caron, Yannick ULg; Borde, L; Losson, Bertrand ULg et al

in Veterinaria (Bruxelles) : Bulletin d’Information de l’Union Syndicale Vétérinaire Belge (2013)

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See detailGiardiose récidivante chez un chien
Caron, Yannick ULg; Paluch, C; Losson, Bertrand ULg

in Annales de Médecine Vétérinaire (2013), 158(2), 97-100

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See detailThree cases of Parafilaria bovicola infection in Belgium, and a few recent epidemiological observations on this emergent disease
Caron, Yannick ULg; Groignet, Stéphanie; Saegerman, Claude ULg et al

in Veterinary Record : Journal of the British Veterinary Association (2013), 175

Parafilariosis is a vector borne parasitic disease caused by the development of the nematode Parafilaria bovicola in the subcutaneous and intermuscular connective tissues of cattle. On February 28th 2012 ... [more ▼]

Parafilariosis is a vector borne parasitic disease caused by the development of the nematode Parafilaria bovicola in the subcutaneous and intermuscular connective tissues of cattle. On February 28th 2012, the so-called bleeding spots were observed in two heifers and one bull in a cattle herd close to Namur (Belgium). The animals had been treated in December with an injectable ivermectin/closantel solution (Closamectin pour on®, Norbrook Lab) at the recommended dosage. Samples of serohaemorrhagic exudate and blood as well as skin biopsies were collected. Embryonated eggs of Parafilaria bovicola in the serohaemorrhagic exudate and high levels of creatine phosphokinase (CPK) were detected. Clinically affected animals were treated with injectable ivermectin (Ivomec®, Merial) at 200 µg/kg. Two epidemiological phone surveys were carried out in the south of Belgium (Wallonia) in order to estimate the geographical distribution of this condition since it was first described and published in 2009. A standardized questionnaire was used and the results were analysed. Most outbreaks were recorded in the provinces of Liege and Luxembourg. The initial source of infection is still unknown but this parasitic infection is clearly spreading from the initial Belgian outbreak site. [less ▲]

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See detailThelazia callipaeda ocular infection in two dogs in Belgium
Caron, Yannick ULg; Prémont, Johanna ULg; Losson, Bertrand ULg et al

in Journal of Small Animal Practice (2013), 54(3),

Eyeworms were retrieved from the left eyes of two dogs presented for unilateral ocular discharge in Belgium. Morphological and molecular identification were performed and the parasites were identified as ... [more ▼]

Eyeworms were retrieved from the left eyes of two dogs presented for unilateral ocular discharge in Belgium. Morphological and molecular identification were performed and the parasites were identified as Thelazia callipaeda. The history suggested that the infection had been acquired in South-Western France and Southern Italy where the disease has been observed regularly for the last 6 and 12 years, respectively. In these two regions, the disease is considered endemic and spreading. To the best of our knowledge, this is the first complete case report of canine thelaziosis in Belgium. The risk of introduction of the parasite in Northern Europe and particularly in Belgium is discussed. [less ▲]

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See detailCulicoides (Diptera : Ceratopogonidae) : important vectors of cattle diseases. Control assays in Belgium
Smeets, François ULg; Robert, Nancy; Simonon, Grégory et al

Poster (2012, October 19)

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See detailEncephalitozoonosis in a pet dwarf rabbit.
Caron, Yannick ULg; Abos, Romain ULg

Poster (2012, October 19)

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See detailLes Culicoides, importants vecteurs de maladies du bétail
Smeets, François ULg; Robert, Nancy; Simonon, Grégory et al

Diverse speeche and writing (2012)

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See detailLongitudinal field study on bovine Babesia spp. and Anaplasma phagocytophilum infections during a grazing season in Belgium
Lempereur, Laetitia ULg; Lebrun, Maude; Cuvelier, Pascale et al

in Parasitology Research (2012), 110(4), 1525-1530

Anaplasmosis and babesiosis are major tick-borne diseases with a high economic impact but are also a public health concern. Blood samples collected in the spring, summer, and autumn of 2010 from 65 cows ... [more ▼]

Anaplasmosis and babesiosis are major tick-borne diseases with a high economic impact but are also a public health concern. Blood samples collected in the spring, summer, and autumn of 2010 from 65 cows in seven different farms in Belgium were monitored with an indirect immunofluorescence antibody test to assess seroprevalence against these pathogens. Seroprevalences to Babesia spp. were measured as 10.7%, 20%, and 12.3% in spring, summer, and autumn, respectively, whereas seroprevalences to Anaplasma phagocytophilum were 30.8%, 77%, and 56.9%, respectively. A total of 805 Ixodes ricinus ticks were collected at the same time from both cattle (feeding ticks) and grazed pastures (questing ticks). The infection level of ticks, assessed by PCR assay, for Babesia spp. DNA was 14.6% and 7.9% in feeding and questing ticks, respectively, whereas 21.7% and 3% of feeding and questing ticks were found be positive for A. phagocytophilum cDNA. Fifty-five PCR-positive samples were identified by sequencing as Babesia sp. EU1, of which five from feeding ticks were positive for both A. phagocytophilum and Babesia sp. EU1. The high density of wild cervids in the study area could explain these observations, as deer are considered to be the main hosts for adults of I. ricinus. However, the absence of Babesia divergens both in feeding and questing ticks is surprising, as the study area is known to be endemic for cattle babesiosis. Increasing cervid populations and comorbidity could play an import role in the epidemiology of these tick-borne diseases. [less ▲]

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