28 results on '"Overgaauw, Paul"'
Search Results
2. Imported Hyalomma ticks in the Netherlands 2018–2020
- Author
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Uiterwijk, Mathilde, Ibáñez-Justicia, Adolfo, van de Vossenberg, Bart, Jacobs, Frans, Overgaauw, Paul, Nijsse, Rolf, Dabekaussen, Charlotte, Stroo, Arjan, and Sprong, Hein
- Published
- 2021
- Full Text
- View/download PDF
3. Environmental contamination with Toxocara spp. eggs in public parks and playground sandpits of Greater Lisbon, Portugal
- Author
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Otero, David, Alho, Ana M., Nijsse, Rolf, Roelfsema, Jeroen, Overgaauw, Paul, and Madeira de Carvalho, Luís
- Published
- 2018
- Full Text
- View/download PDF
4. Zoonotic bacteria and parasites found in raw meat-based diets for cats and dogs
- Author
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van Bree, Freek P J, Bokken, Gertie C A M, Mineur, Robin, Franssen, Frits, Opsteegh, Marieke, van der Giessen, Joke W B, Lipman, Len J A, and Overgaauw, Paul A M
- Published
- 2018
- Full Text
- View/download PDF
5. Veterinary and public health aspects of Toxocara spp
- Author
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Overgaauw, Paul A.M. and van Knapen, Frans
- Published
- 2013
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- View/download PDF
6. Role of pet dogs and cats in the transmission of helminthic zoonoses in Europe, with a focus on echinococcosis and toxocarosis
- Author
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Deplazes, Peter, van Knapen, Frans, Schweiger, Alexander, and Overgaauw, Paul A.M.
- Published
- 2011
- Full Text
- View/download PDF
7. Zoonotic Risks of Sleeping with Pets.
- Author
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Zanen, Lucie A., Kusters, Johannes G., and Overgaauw, Paul A. M.
- Subjects
PETS ,CAMPYLOBACTER jejuni ,SLEEP ,PET owners ,CLOSTRIDIOIDES difficile ,DOGS ,ENTEROBACTERIACEAE - Abstract
Background: Pets are increasingly becoming part of the family and interactions between pets and their owners is changing. This results in extended and more intimate contact between owners and their pets, which give rise to zoonotic risks. Objective: To establish the presence of potential zoonotic pathogens in pets that sleep with their owner. Methods: As a pilot study, a group of 28 healthy dogs and 22 healthy cats were monitored for the presence of the zoonotic parasites Cheyletiella, Ctenocephalides spp. and Toxocara spp., the dermatophyte Microsporum canis, and the bacteria Clostridium difficile, Salmonella spp., Campylobacter jejuni and Enterobacteriaceae. This was investigated by taking samples from the fur, the footpads and the animal bed. The owners filled in a questionnaire. Results: In total, 29 of the 50 pets (58%) slept on the bed, of which 15 pets (30%) slept in the bed (under the blankets). A total of 19/22 dogs (86%) and 7/22 cats (32%) tested positive for Enterobacteriaceae on the fur or footpads. Fleas were found in 5/22 of the cats' (23%) and 2/28 of the dogs' (7%) favourite sleeping spots. High levels of aerobic colonies were found, up to 216 colony forming units/cm
2 . Other pathogens were not found in this study. Conclusions: The results of this preliminary study confirm literature reports that pets may constitute a potential risk in the transmission of zoonotic pathogens to their owner, especially during direct contact when sleeping in the same bed. Owners should therefore be informed about these risks and educated to interact with their pets in a more responsible way. [ABSTRACT FROM AUTHOR]- Published
- 2022
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- View/download PDF
8. A Pilot Study on the Contamination of Assistance Dogs’ Paws and Their Users’ Shoe Soles in Relation to Admittance to Hospitals and (In)Visible Disability
- Author
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Jasmijn Vos, S., Wijnker, Joris J., Overgaauw, Paul A.M., Sub IRAS VPH Algemeen, Dep IRAS, Sub IRAS VPH Algemeen, and Dep IRAS
- Subjects
medicine.medical_specialty ,040301 veterinary sciences ,Health, Toxicology and Mutagenesis ,media_common.quotation_subject ,lcsh:Medicine ,Pilot Projects ,Bacterial counts ,Article ,0403 veterinary science ,shoe sole ,Hospital ,03 medical and health sciences ,hygiene ,Dogs ,Denial ,Enterobacteriaceae ,Health hazard ,Hygiene ,Animals ,Humans ,Medicine ,paw ,Disabled Persons ,Toxicology and Mutagenesis ,Assistance dog ,hospital ,Netherlands ,030304 developmental biology ,Clostridium difficile (bacteria) ,media_common ,0303 health sciences ,Shoe sole ,Clostridioides difficile ,business.industry ,Environmental and Occupational Health ,lcsh:R ,Public Health, Environmental and Occupational Health ,04 agricultural and veterinary sciences ,Clostridium difficile ,Hospitals ,Service Animals ,Shoes ,Health ,Family medicine ,Paw ,Public Health ,business ,assistance dog - Abstract
(1) Background: People with disabilities may benefit from an assistance dog (AD). Despite regulations that prohibit the denial of ADs to public places, this still occurs on a regular basis. The main argument for denial of access is that dogs compromise hygiene with their presence, which could cause a health hazard. Meanwhile, people are allowed to walk into and out of public places freely. (2) Objective: As a pilot study, to investigate the number of Enterobacteriaceae and the presence of Clostridium difficile bacteria on the paws of ADs and pet dogs (PDs) as well as the shoe soles of their users and owners. With the results, an assessment can be made as to whether measures are required to reduce environmental contamination (e.g., in hospitals). (3) Methods: In total, 25 ADs, 25 PDs, and their 50 users/owners participated in the study. Each participant walked their dog for 15&ndash, 30 min prior to the sampling of the front paws. Each PD owner or AD user filled out a general questionnaire about the care of their dogs, and AD users were asked to fill out an additional questionnaire on their experiences regarding the admittance of their ADs to public places (in particular, hospitals). Dutch hospitals were questioned on their protocols regarding the admittance of ADs and their visitor numbers, including the percentage of AD users, to put these numbers into perspective. (4) Results: Dog paws were more often negative for Enterobacteriaceae compared to shoe soles (72% and 42%, respectively) and also had significantly lower bacterial counts (mean of 3.54log10 and 5.03log10 colony-forming units (CFUs), respectively, p <, 0.05). This was most distinct in the comparison between PDs and their owners (3.75log10 and 5.25log10 CFUs, 0.05), the numbers were similar between ADs and their users (3.09log10 and 4.58log10 CFUs, p = 0.2). C. difficile was found on one (4%) AD user&rsquo, s shoe soles. Moreover, 81% of AD users had been denied access with their current AD once or several times, the main reason being hygiene. The results of the visibly and invisibly disabled were significantly different. The number of AD users as opposed to the total number of hospital visitors was 0.03% in one hospital and is estimated to be 0.02% in the Netherlands. (5) Conclusions: The general hygiene of dogs&rsquo, paws is far better than that of shoe soles, mostly demonstrated by the better general hygiene of PD paws compared with their owners&rsquo, shoe soles, ADs and their users had comparable levels of general hygiene. In addition, the number of AD users amongst the total number of hospital visitors in the Netherlands is very limited. Thus, hygiene measures to reduce any contamination due to dog paws do not seem necessary.
- Published
- 2021
9. Sources of environmental contamination with Toxocara spp.: An omnipresent parasite
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Nijsse, Rolf, Overgaauw, Paul, Ploeger, Harm, and Mughini-Gras, Lapo
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Roundworm ,Dog ,Sources ,Cat ,Environment ,Toxocara - Published
- 2020
10. Absence of zoonotic Bartonella species in questing ticks: First detection of Bartonella clarridgeiae and Rickettsia felis in cat fleas in the Netherlands
- Author
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Reimerink Johan R, Takken Willem, Jongejan Frans, Hovius Emil KE, Nijhof Ard M, Gassner Fedor, Fonville Manoj, Tijsse-Klasen Ellen, Overgaauw Paul AM, and Sprong Hein
- Subjects
Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background Awareness for flea- and tick-borne infections has grown in recent years and the range of microorganisms associated with these ectoparasites is rising. Bartonella henselae, the causative agent of Cat Scratch Disease, and other Bartonella species have been reported in fleas and ticks. The role of Ixodes ricinus ticks in the natural cycle of Bartonella spp. and the transmission of these bacteria to humans is unclear. Rickettsia spp. have also been reported from as well ticks as also from fleas. However, to date no flea-borne Rickettsia spp. were reported from the Netherlands. Here, the presence of Bartonellaceae and Rickettsiae in ectoparasites was investigated using molecular detection and identification on part of the gltA- and 16S rRNA-genes. Results The zoonotic Bartonella clarridgeiae and Rickettsia felis were detected for the first time in Dutch cat fleas. B. henselae was found in cat fleas and B. schoenbuchensis in ticks and keds feeding on deer. Two Bartonella species, previously identified in rodents, were found in wild mice and their fleas. However, none of these microorganisms were found in 1719 questing Ixodes ricinus ticks. Notably, the gltA gene amplified from DNA lysates of approximately 10% of the questing nymph and adult ticks was similar to that of an uncultured Bartonella-related species found in other hard tick species. The gltA gene of this Bartonella-related species was also detected in questing larvae for which a 16S rRNA gene PCR also tested positive for "Candidatus Midichloria mitochondrii". The gltA-gene of the Bartonella-related species found in I. ricinus may therefore be from this endosymbiont. Conclusions We conclude that the risk of acquiring Cat Scratch Disease or a related bartonellosis from questing ticks in the Netherlands is negligible. On the other hand fleas and deer keds are probable vectors for associated Bartonella species between animals and might also transmit Bartonella spp. to humans.
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- 2011
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11. Urban Dog Parks as Sources of Canine Parasites: Contamination Rates and Pet Owner Behaviours in Lisbon, Portugal
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Ferreira, Ana F., Alho, Ana Margarida, Otero, David, Gomes, Lídia, Nijsse, Rolf, Overgaauw, Paul A.M., Madeira de Carvalho, Luís, LS Klinisch Onderzoek Wagenaar, Dep IRAS, dI&I I&I-4, LS Klinisch Onderzoek Wagenaar, Dep IRAS, and dI&I I&I-4
- Subjects
0301 basic medicine ,Veterinary medicine ,medicine.medical_specialty ,Health Knowledge, Attitudes, Practice ,Article Subject ,Cystoisospora ,Health, Toxicology and Mutagenesis ,Parks, Recreational ,Environment controlled ,Sarcocystis sp ,03 medical and health sciences ,Feces ,Soil ,Dogs ,Surveys and Questionnaires ,medicine ,Animals ,Parasites ,Dog Diseases ,Cities ,Toxascaris leonina ,biology ,Portugal ,lcsh:Public aspects of medicine ,Public health ,Human-Animal Bond ,Public Health, Environmental and Occupational Health ,lcsh:RA1-1270 ,Cryptosporidium ,030108 mycology & parasitology ,Contamination ,biology.organism_classification ,3. Good health ,Geography ,Public Health ,GIARDIA SPP ,Environmental Health ,Research Article - Abstract
Dog parks represent a recent trend in western countries, enabling owners to spend quality time with their pets in a controlled environment. Despite their growing popularity, few studies have been performed to date on these parks to investigate dog intestinal parasitic infections and soil contamination. The present study examined 369 faecal and 18 soil samples collected from 3 dog parks in Greater Lisbon, Portugal. Additionally, 102 interviews were performed with dog owners to assess dog-walking behaviours and parasite risk. In total, 33% of the faecal dog samples were infected with at least one parasitic agent: hookworms (16.5%), Cryptosporidium spp. (11.9%), Giardia spp. (11.4%), Toxascaris leonina (1.1%), Cystoisospora spp. (1.1%), Toxocara spp. (0.5%), and Sarcocystis sp. (0.3%). The soil of all the parks was contaminated with hookworm eggs. This is the first study performed in a European urban area to assess canine faecal contamination and parasitic agents in dog parks. Our results highlight the potential of these parks as a source of transmission for canine parasites, including some with zoonotic potential. Public awareness and effective preventive measures should be promoted to minimise the health-risk impact to both animals and humans, under the scope of environmental and public health.
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- 2017
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12. Dogs and Transmission of Infection to Man, 'Respected Member of the Family?'
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van Knapen, Frans and Overgaauw, Paul
- Subjects
Echinococcus Multilocularis ,Parasite Control ,West Nile Virus ,Cystic Echinococcosis ,Article ,Potential Health Risk - Abstract
Numerous reviews on dog zonoses address long-lasting lists of zoonotic infections, observed worldwide or very specifically in certain regions only. Here we describe the average family dog in the Western hemisphere owned by an average family without sufficient knowledge about potential hazards their pet might transmit to family members. This chapter is based on semi quantitative risk analysis in order to rank potential health risk transmitted from family dogs to human. Surprisingly every day risk is different from the generally expected potential risk according to traditional ranking of hazards (zoonoses) in dogs in general. Attention is given to human behavior regarding the family dog and responsible dog ownership. Modern trends include pet travel or pet import from endemic to non-endemic areas, without sufficient knowledge amongst pet owners or public health institutes. Of great value is information provided by ESCCAP (www.esccap.org) with information for European countries (veterinarians and pet-owners) on prevalences and prevention of parasitic infections in dogs and cats in the major languages of Europe. Eventually attention is paid to new trends in dog feed such as feeding bones and raw meat. This may have serious consequences for the spread of ordinary zoonoses like Salmonella and parasitic infections not only between dogs, but also to family members. A last point of attention is the prevention of attracting wild life zoonoses via dogs to family members (eg. Echinococcus multilocularis and Baylisascaris spp.). Authorities responsible for public health should be encouraged to pay more attention, not only in providing more regulations, but primary in enforcement of existing rules and stimulating responsible pet-ownership. Companion animal veterinarians and (local) public health authorities, including physicians, should contribute equally in zoonoses prevention programs (‘One health’ approach).
- Published
- 2014
13. Chapter Thirty-Five: Prevalence of patent Toxocara spp. infections in dogs and cats in Europe from 1994 to 2019.
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Overgaauw, Paul and Nijsse, Rolf
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FELIDAE , *TOXOCARA , *DOGS , *CATS , *FERAL dogs , *META-analysis - Abstract
Objectives: To provide an overview of Toxocara prevalences in dogs and cats in Europe from the last 25 years. Method: Systematic review of the literature. Results: Over the past 25 years, prevalence studies of Toxocara spp. have been published from 26 European countries. The average prevalences were 14.6% for T. canis in all dogs and 24.5% for T. cati in all cats. Specified for young dogs until 6 months old this was 41.2%, for young cats until 6 months old 25%, adult owned dogs 11.1%, adult owned cats 16.3%, stray dogs 17.6%, and stray cats 33.5%. A recent study in seven European countries showed a prevalence of 3.4% for adult dogs and 4.2% for adult cats. The prevalences seem not to decrease over the years. Conclusion: The prevalence of patent Toxocara infections over the last 25 years did not show a distinct declining trend. Prevalence data provided by recent modern antigen tests showed much lower results than from older studies. Results from studies using less diverse methods and well-defined study-populations could provide more clarity. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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14. Chapter Twenty-Nine: Sources of environmental contamination with Toxocara spp.: An omnipresent parasite.
- Author
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Nijsse, Rolf, Overgaauw, Paul, Ploeger, Harm, and Mughini-Gras, Lapo
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TOXOCARA , *CONTAMINATION of eggs , *PARASITES , *FOXES , *CANIDAE , *CANINE distemper virus , *DIROFILARIA immitis , *FELIDAE - Abstract
Embryonated Toxocara eggs in the environment are considered to be the most important source of human toxocariasis. These eggs, however, are also a source of infection for the definitive and paratenic hosts. Most available literature focuses on Toxocara canis in dogs, or other canids. There are, however, other Toxocara species with their accompanying definitive hosts. Results from studies that modelled patent infections in dogs, cats and foxes show that although dogs are a very important source for environmental contamination with Toxocara eggs, other sources cannot be ignored. For a good understanding of the relative contributions of different definitive hosts to environmental contamination with Toxocara eggs, computational models should be built and fed with data from different fields of expertise as is discussed in this paper. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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15. Identification of Bartonella Species Isolated from Rodents from Yucatan, Mexico, and Isolation of Bartonella vinsonii subsp. yucatanensis subsp. nov.
- Author
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Schulte Fischedick, Frederique B., Stuckey, Matthew J., Aguilar-Setién, Alvaro, Moreno-Sandoval, Hayde, Galvez-Romero, Guillermo, Salas-Rojas, Mónica, Arechiga-Ceballos, Nidia, Overgaauw, Paul A. M., Kasten, Rickie W., and Chomel, Bruno B.
- Subjects
BARTONELLA ,RODENTS ,VIRUS isolation ,NUCLEIC acid isolation methods ,POLYMERASE chain reaction - Abstract
Bartonella species are highly endemic among wild rodents in many parts of the world. Blood and/or blood clot cultures from 38 rodents, including 27 Yucatan deer mouse ( Peromyscus yucatanicus), 7 Gaumer's spiny pocket mouse ( Heteromys gaumeri), 2 black rats ( Rattus rattus) and 2 big-eared climbing rats ( Ototylomys phyllotis) captured near Merida, Yucatan, Mexico, led to the isolation in 3-4 days of small gram-negative bacilli, which were identified as Bartonella spp. based on colony morphology. DNA extraction and PCR testing were also performed from heart samples of 35 of these 38 rodents. Overall, Bartonella spp. were isolated from the blood/blood clots of 22 (58%) rodents. All Bartonella-positive rodents were Yucatán deer mice from San José Pituch. Sequencing of a fragment of the gltA gene showed that all but one rodent isolates were closest to B. vinsonii subsp. vinsonii and one isolate was intermediate between B. vinsonii subsp. berkhoffii and B. vinsonii subsp. arupensis. Further analysis of concatenated housekeeping genes ( gltA, ftsZ, rpoB, and 16S rRNA) suggests that this outlier isolate is a new subspecies within the B. vinsonii genogroup, for which we proposed the name B. vinsonii subsp. yucatanensis. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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16. Dogs and Transmission of Infection to Man, ˵Respected Member of the Family?″.
- Author
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van Knapen, Frans and Overgaauw, Paul
- Published
- 2015
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- View/download PDF
17. Absence of zoonotic Bartonella species in questing ticks: First detection of Bartonella clarridgeiae and Rickettsia felis in cat fleas in the Netherlands.
- Author
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Tijsse-Klasen, Ellen, Fonville, Manoj, Gassner, Fedor, Nijhof, Ard M., Hovius, Emil K. E., Jongejan, Frans, Takken, Willem, Reimerink, Johan R., Overgaauw, Paul A. M., and Sprong, Hein
- Subjects
ZOONOSES ,BARTONELLA infections ,TICKS ,RNA - Abstract
Background: Awareness for flea- and tick-borne infections has grown in recent years and the range of microorganisms associated with these ectoparasites is rising. Bartonella henselae, the causative agent of Cat Scratch Disease, and other Bartonella species have been reported in fleas and ticks. The role of Ixodes ricinus ticks in the natural cycle of Bartonella spp. and the transmission of these bacteria to humans is unclear. Rickettsia spp. have also been reported from as well ticks as also from fleas. However, to date no flea-borne Rickettsia spp. were reported from the Netherlands. Here, the presence of Bartonellaceae and Rickettsiae in ectoparasites was investigated using molecular detection and identification on part of the gltA- and 16S rRNA-genes. Results: The zoonotic Bartonella clarridgeiae and Rickettsia felis were detected for the first time in Dutch cat fleas. B. henselae was found in cat fleas and B. schoenbuchensis in ticks and keds feeding on deer. Two Bartonella species, previously identified in rodents, were found in wild mice and their fleas. However, none of these microorganisms were found in 1719 questing Ixodes ricinus ticks. Notably, the gltA gene amplified from DNA lysates of approximately 10% of the questing nymph and adult ticks was similar to that of an uncultured Bartonella-related species found in other hard tick species. The gltA gene of this Bartonella-related species was also detected in questing larvae for which a 16S rRNA gene PCR also tested positive for "Candidatus Midichloria mitochondrii". The gltA-gene of the Bartonella-related species found in I. ricinus may therefore be from this endosymbiont. Conclusions: We conclude that the risk of acquiring Cat Scratch Disease or a related bartonellosis from questing ticks in the Netherlands is negligible. On the other hand fleas and deer keds are probable vectors for associated Bartonella species between animals and might also transmit Bartonella spp. to humans. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
18. Zoonotic parasites in fecal samples and fur from dogs and cats in The Netherlands
- Author
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Overgaauw, Paul A.M., van Zutphen, Linda, Hoek, Denise, Yaya, Felix O., Roelfsema, Jeroen, Pinelli, Elena, van Knapen, Frans, and Kortbeek, Laetitia M.
- Subjects
- *
ZOONOSES , *ANIMAL diseases , *PETS , *ANIMAL droppings , *VETERINARY therapeutics , *FUR , *ENZYME-linked immunosorbent assay , *POLYMERASE chain reaction - Abstract
Abstract: Pets may carry zoonotic pathogens for which owners are at risk. The aim of the study is to investigate whether healthy pets harbour zoonotic parasitic infections and to make an inventory of the interactions between pet-owners and their companion animals in the Netherlands. Fecal and hair samples were collected from healthy household dogs and cats in Dutch veterinary practices. Owners were interviewed about interaction with their pets. The samples were investigated by microscopy, ELISA, and PCR. From 159 households, 152 dogs (D) and 60 cats (C), information and samples were collected and examination for several zoonotic parasites was performed. Toxocara eggs were found in 4.4% (D) and 4.6% (C) of the fecal samples and in 12.2% (D) and 3.4% (C) of the fur samples. The median epg in the fur was 17 (D) and 28 (C) and none of these eggs were viable. From 15.2% of the dog and 13.6% of the cat feces Giardia was isolated. One canine and one feline Giardia isolate was a zoonotic assemblage A (12%). Cryptosporidium sp. were present in 8.7% (D) and 4.6% (C) of the feces. Fifty percent of the owners allow the pet to lick their faces. Sixty percent of the pets visit the bedroom; 45–60% (D–C) are allowed on the bed, and 18–30% (D–C) sleep with the owner in bed. Six percent of the pets always sleep in the bedroom. Of the cats, 45% are allowed to jump onto the kitchen sink. Nearly 39% of the dog owners never clean up the feces of their dog. Fifteen percent of the dog owners and 8% of the cat owners always wash their hands after contact with the animals. Close physical contact between owners and their pets is common and poses an increased risk of transmission of zoonotic pathogens. Education of owners by the vet, specifically about hygiene and potential risks, is required. [Copyright &y& Elsevier]
- Published
- 2009
- Full Text
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19. Aspects of Toxocara Epidemiology: Human Toxocarosis.
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Overgaauw, Paul A. M. and Nederland, Virbac
- Published
- 1997
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20. Aspects of Toxocara Epidemiology: Toxocarosis in Dogs and Cats.
- Author
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Overgaauw, Paul A. M. and Nederland, Virbac
- Published
- 1997
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21. A Pilot Study on the Contamination of Assistance Dogs' Paws and Their Users' Shoe Soles in Relation to Admittance to Hospitals and (In)Visible Disability.
- Author
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Vos, S. Jasmijn, Wijnker, Joris J., and Overgaauw, Paul A. M.
- Published
- 2021
- Full Text
- View/download PDF
22. A One Health Perspective on the Human–Companion Animal Relationship with Emphasis on Zoonotic Aspects.
- Author
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Overgaauw, Paul A.M., Vinke, Claudia M., van Hagen, Marjan A.E., and Lipman, Len J.A.
- Published
- 2020
- Full Text
- View/download PDF
23. Awareness and control of canine leishmaniosis: A survey among Spanish and French veterinarians.
- Author
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Le Rutte, Epke A., van Straten, Roosmarijn, and Overgaauw, Paul A.M.
- Subjects
- *
LEISHMANIASIS , *CANIDAE , *ZOONOSES , *INSECTS as carriers of disease , *DISEASE prevalence , *VETERINARY parasitology , *INFECTIOUS disease transmission , *DISEASES - Abstract
Zoonotic visceral leishmaniasis (ZVL) is a parasitic disease affecting dogs and humans, which is transmitted by female sandflies. Over the last decade, disease prevalence has increased fivefold in parts of southern Europe, where an estimated 2.5 million dogs are infected. This increase is mainly due to an expansion in sandfly distribution due to climate change and to the greater numbers of dogs travelling among European countries. To combat the spread of ZVL in Europe, international guidelines have been drawn up that describe strategies to prevent, control and monitor the disease. To investigate whether these strategies are being implemented in the field, we conducted an online survey among veterinarians in Spain (endemic for ZVL) and France (south: emerging; north: non-endemic). Of the 889 respondents, 459 veterinarians completed all questions. Although 60% of all veterinarians were aware of the current ZVL increase in Europe, 70% were not familiar with any guidelines for controlling the disease. Most of their preventive and treatment actions were, however, in line with intervention strategies recommended by the guidelines. From the veterinarians in this survey, 76% had received no reports regarding confirmed cases of canine leishmaniosis (CanL) or human visceral leishmaniasis in their region or country. The fact that 88% of confirmed cases of clinical CanL were not reported suggests inadequate disease monitoring and evaluation. We therefore recommend that an easy-to-use and accessible international online network be developed, where both veterinarians and physicians can report confirmed cases of leishmaniosis in dogs and humans. This is crucial for monitoring, controlling and preventing the further spread of ZVL in Europe at regional, national and international level. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
24. Autochthonous case of Dirofilaria repens in a dog in the Netherlands.
- Author
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Overgaauw, Paul and Van Dijk, Evert
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- *
LETTERS to the editor , *DOG parasites - Abstract
A letter to the editor is presented which discusses the autochthonous case of Dirofilaria repens in an 18-month-old female English bulldog in the Netherlands.
- Published
- 2009
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25. Gastrointestinal parasite risk in dog parks in the Lisbon area
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Ferreira, Ana Maria Nogueira, Overgaauw, Paul A. M., and Carvalho, Luís Manuel Madeira de
- Subjects
Parasitas gastrointestinais ,Dog-attending parks ,Environmental contamination ,Cães ,Zoonoses ,Dog ,Uma Saúde ,Gastrointestinal parasites ,One Health ,Parques caninos ,Contaminação ambiental - Abstract
Dissertação de Mestrado Integrado em Medicina Veterinária Dog parks may pose a risk for the transmission of parasitic zoonotic agents via the faeces and soil contact. This is the first study to investigate gastrointestinal infections in park-attending dogs in Lisbon. The research was carried out under the frame of a field study including both parasitological and a survey approach. 369 faecal and 18 soil samples were collected from three dog parks in the Lisbon area and analysed for parasite eggs. 102 questionnaires were filled. The overall prevalence for positive faecal samples was 33%. Ancylostomatidae represent 17%, Cryptosporidium spp. 12%, Giardia spp. 11%, Toxascaris leonina and Cystoisospora spp. 1% each, Toxocara spp. 0.5% and Sarcocystis spp. 0.3%. From soil samples, 28% were contaminated with only Ancylostomatidae eggs. In the last 12 months 94% of the dogs were observed by a veterinarian. 90% were dewormed in the previous six months, from which 28% at least four times a year. Additionally, 26% of the dogs share the house with at least one dog, 50% visit the park daily, and 75% were always allowed to be off-leash. Also, 1% was fed with raw meat. Despite 94% of the owner’s claimed faecal collection of their pets, it was common to see 10-20 faecal samples on the environment of every dog space on sampling days. Regarding the pet-owner relationship, 76% of the dogs were allowed to lick their owners’ faces, 82% to be in their bedroom and 43% to sleep in their bed. Approximately one third of faecal samples of dogs in canine parks was infected with gastrointestinal parasites, some with potential zoonotic risk. Less than a quarter of the dogs were dewormed following the recommended schedule (at least 4 times a year). The majority of the owners have close physical contact with their dogs, increasing the transmission risk of zoonoses. Public awareness about potential risks and preventive procedures is therefore advised. RESUMO - Risco parasitário gastrointestinal em parques caninos na área de Lisboa - Os parques caninos podem representar um risco para a transmissão de agentes parasitários zoonóticos através do contato com fezes e solo. Este é o primeiro estudo a investigar infeções gastrointestinais em cães que frequentam parques caninos em Lisboa. O estudo foi realizado sob a estrutura de um estudo de campo, incluindo tanto uma abordagem parasitológica como um questionário. 369 amostras fecais e 18 amostras de solo foram recolhidos de três parques caninos na área da Grande Lisboa e analisadas para ovos de parasitas. 102 inquéritos foram preenchidos. A prevalência global de amostras fecais positivas foi de 33%. A presença de Ancylostomatidae representa 17%, Cryptosporidium spp. 12%, Giardia spp. 11%, Toxascaris leonina e Cystoisospora spp. 1% cada, Toxocara spp. 0.5% e Sarcocystis spp. 0.3%. Das amostras de solo, 28% estavam contaminadas apenas com ovos de Ancylostomatidae. Nos últimos 12 meses 94% dos cães foram observados por um veterinário. 90% foram desparasitados nos seis meses anteriores, dos quais 28% pelo menos quatro vezes por ano. Além disso, 26% dos cães partilha a casa com, pelo menos um cão, 50% visita o parque diariamente, e 75% foi sempre autorizado a estar solto. Além disso, 1% era alimentado com comida crua. Apesar de 94% dos proprietários alegar a colheita das fezes dos seus animais de estimação, era comum ver 10-20 amostras fecais em cada espaço canino nos dias de amostragem. Tendo em conta o relacionamento do animal de estimação com o dono, 76% dos cães eram autorizados a lamber as caras dos donos, 82% a estar no seu quarto e 43% a dormir na sua cama. Aproximadamente um terço das amostras fecais de cães de parques caninos estava infectado com parasitas gastrointestinais, alguns com potencial risco zoonótico. Menos de um quarto dos cães eram desparasitados seguindo o esquema recomendado (pelo menos 4 vezes por ano). A maioria dos proprietários tem contato físico com os seus cães, aumentando o risco de transmissão de zoonoses. A sensibilização do público sobre os riscos potenciais e os procedimentos de prevenção é, portanto, aconselhável.
- Published
- 2015
26. Sources of environmental contamination with Toxocara spp.: An omnipresent parasite.
- Author
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Nijsse R, Overgaauw P, Ploeger H, and Mughini-Gras L
- Subjects
- Animals, Animals, Wild parasitology, Cats parasitology, Dogs parasitology, Humans, Larva, Ovum, Toxocara canis, Toxocariasis epidemiology, Toxocariasis parasitology, Toxocariasis prevention & control, Disease Reservoirs parasitology, Environment, Toxocara physiology, Toxocariasis etiology
- Abstract
Embryonated Toxocara eggs in the environment are considered to be the most important source of human toxocariasis. These eggs, however, are also a source of infection for the definitive and paratenic hosts. Most available literature focuses on Toxocara canis in dogs, or other canids. There are, however, other Toxocara species with their accompanying definitive hosts. Results from studies that modelled patent infections in dogs, cats and foxes show that although dogs are a very important source for environmental contamination with Toxocara eggs, other sources cannot be ignored. For a good understanding of the relative contributions of different definitive hosts to environmental contamination with Toxocara eggs, computational models should be built and fed with data from different fields of expertise as is discussed in this paper., (© 2020 Elsevier Ltd All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
27. Prevalence of patent Toxocara spp. infections in dogs and cats in Europe from 1994 to 2019.
- Author
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Overgaauw P and Nijsse R
- Subjects
- Animals, Cat Diseases parasitology, Cats parasitology, Dog Diseases parasitology, Dogs parasitology, Europe epidemiology, Prevalence, Toxocara canis, Toxocariasis parasitology, Cat Diseases epidemiology, Dog Diseases epidemiology, Toxocara, Toxocariasis epidemiology
- Abstract
Objectives: To provide an overview of Toxocara prevalences in dogs and cats in Europe from the last 25 years., Method: Systematic review of the literature., Results: Over the past 25 years, prevalence studies of Toxocara spp. have been published from 26 European countries. The average prevalences were 14.6% for T. canis in all dogs and 24.5% for T. cati in all cats. Specified for young dogs until 6 months old this was 41.2%, for young cats until 6 months old 25%, adult owned dogs 11.1%, adult owned cats 16.3%, stray dogs 17.6%, and stray cats 33.5%. A recent study in seven European countries showed a prevalence of 3.4% for adult dogs and 4.2% for adult cats. The prevalences seem not to decrease over the years., Conclusion: The prevalence of patent Toxocara infections over the last 25 years did not show a distinct declining trend. Prevalence data provided by recent modern antigen tests showed much lower results than from older studies. Results from studies using less diverse methods and well-defined study-populations could provide more clarity., (© 2020 Elsevier Ltd All rights reserved.)
- Published
- 2020
- Full Text
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28. Identification of Bartonella Species Isolated from Rodents from Yucatan, Mexico, and Isolation of Bartonella vinsonii subsp. yucatanensis subsp. nov.
- Author
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Schulte Fischedick FB, Stuckey MJ, Aguilar-Setién A, Moreno-Sandoval H, Galvez-Romero G, Salas-Rojas M, Arechiga-Ceballos N, Overgaauw PA, Kasten RW, and Chomel BB
- Subjects
- Animals, Bartonella genetics, Mexico, Phylogeny, Polymerase Chain Reaction, RNA, Bacterial genetics, RNA, Ribosomal, 16S genetics, Bartonella classification, Bartonella isolation & purification, Rodentia microbiology
- Abstract
Bartonella species are highly endemic among wild rodents in many parts of the world. Blood and/or blood clot cultures from 38 rodents, including 27 Yucatan deer mouse (Peromyscus yucatanicus), 7 Gaumer's spiny pocket mouse (Heteromys gaumeri), 2 black rats (Rattus rattus) and 2 big-eared climbing rats (Ototylomys phyllotis) captured near Merida, Yucatan, Mexico, led to the isolation in 3-4 days of small gram-negative bacilli, which were identified as Bartonella spp. based on colony morphology. DNA extraction and PCR testing were also performed from heart samples of 35 of these 38 rodents. Overall, Bartonella spp. were isolated from the blood/blood clots of 22 (58%) rodents. All Bartonella-positive rodents were Yucatán deer mice from San José Pituch. Sequencing of a fragment of the gltA gene showed that all but one rodent isolates were closest to B. vinsonii subsp. vinsonii and one isolate was intermediate between B. vinsonii subsp. berkhoffii and B. vinsonii subsp. arupensis. Further analysis of concatenated housekeeping genes (gltA, ftsZ, rpoB, and 16S rRNA) suggests that this outlier isolate is a new subspecies within the B. vinsonii genogroup, for which we proposed the name B. vinsonii subsp. yucatanensis.
- Published
- 2016
- Full Text
- View/download PDF
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