Veterinary parasitology, regional studies and reports最新文献

{"title":"Moniezia infection in first season grazing cattle pastured in the Alps and Alpine Forelands in Bavaria, Germany","authors":"Steffen Rehbein,&nbsp;Dietmar Hamel","doi":"10.1016/j.vprsr.2024.101174","DOIUrl":"10.1016/j.vprsr.2024.101174","url":null,"abstract":"<div><div><em>Moniezia</em> cestode infection of livestock is generally regarded as being of little significance. No pathology associated with <em>Moniezia</em> infection has been reported from cattle. The repeated diagnosis of <em>Moniezia</em> infection in young cattle included in six nematode control grazing studies or examined in two helminth parasite surveys conducted over the past two decades in the south of Germany stimulated analysis of this data to draw conclusions about the epidemiology of bovine <em>Moniezia</em> infection.</div><div><em>Moniezia</em> eggs (phenotypically of <em>M. benedeni</em>) were identified in 167/1442 fecal specimens collected periodically from 262 cattle after their turnout on pastures in the Alps or Alpine Forelands for about four to five months during the period of May to November in five studies. Ninety-two of the 262 animals were demonstrated shedding <em>Moniezia</em> eggs on at least one occasion. Based on the occurrence and proportion of positive samples, <em>Moniezia</em> egg shedding was first observed in July (4.2 %), about eight weeks after the start of grazing, peaked end of August/early September (20.6 %) and declined thereafter towards October/November (7.7 %).</div><div>The individual tapeworm burden was overall low (range, 1 to 11 cestodes) with 61 % of the tapeworm positive animals harboring one or two cestodes only. The pattern of <em>Moniezia</em> egg shedding and the necropsy of cattle indicated that the infection is contracted shortly after turnout in late spring. Under conditions of continuous challenge, the cattle were acquiring immune protection to the infection, with lower prevalence and tapeworm burden in animals grazing several months compared with cattle grazing for a few weeks.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101174"},"PeriodicalIF":1.4,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First report of anthelmintic resistance among sheep in six farms from three governorates in Jordan","authors":"Rami M. Mukbel,&nbsp;Abdelqader A. Kreishan,&nbsp;Haifa B. Hammad,&nbsp;Mohammad N.S. Al-Sabi","doi":"10.1016/j.vprsr.2024.101171","DOIUrl":"10.1016/j.vprsr.2024.101171","url":null,"abstract":"<div><div>This study aimed to identify the presence of gastrointestinal nematode populations resistant to albendazole, levamisole, and ivermectin in six farms located in three regions of Jordan (Irbid, Mafraq, and Ma'an). Infected sheep (40 per farm) with at least 100 eggs per gram were randomly divided into four groups (10 animals per group). Three groups were treated with ivermectin, albendazole, or levamisole while the fourth group was used as a negative control group. The standard faecal egg count reduction test (FECRT) was used to assess the drugs' efficacy. Resistance to ivermectin and albendazole was detected in all studied farms while resistance to levamisole was detected in four of the sampled farms. FECRT ranged from 55.6 % (90 % Confidence Intervals (CI): 29.6 % - 79.6 %) to 80.3 % (CI: 48.3 % - 92.1 %) for ivermectin, 77.4 % (CI: 53.2–86.7 %) to 95 % (CI: 85.8–97.6 %) for albendazole, and 86 % (CI: 46.1–95.6 %) to 99.4 % (CI: 97.6–99.7 %) for levamisole. Post-treatment copro-cultures, faecal floatation and/or Baermann technique indicated the presence of larvae of <em>Haemonchus</em> spp. in all of the sampled farms, followed by <em>Nematodirus</em> spp. in four farms, <em>Trichostrongylus</em> spp. in three farms, then <em>Marshallagia</em> spp. in one farm. This is the first study of its kind in Jordan that shows widespread anthelmintic resistance for gastrointestinal nematodes in geographically distant sheep farms in Jordan. Such widespread resistance to anthelmintics imposes a risk of failure to the present control programs and urges for changing the methodology of selecting effective anthelmintic treatments in local farms.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101171"},"PeriodicalIF":1.4,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atypical case of recurrent otitis with polyp formation in the ear canal associated with lagochilascariasis in a domestic feline in Brazil","authors":"Felipe Rosa Cunha ,&nbsp;Julia Somavilla Lignon ,&nbsp;Natália Soares Martins ,&nbsp;Tamires Silva dos Santos ,&nbsp;Kauê Rodriguez Martins ,&nbsp;Rodrigo Casquero Cunha ,&nbsp;Ricardo de Oliveira ,&nbsp;Camila Louzada Valente ,&nbsp;Haide Valeska Scheid ,&nbsp;Felipe Geraldo Pappen ,&nbsp;Diego Moscarelli Pinto","doi":"10.1016/j.vprsr.2024.101177","DOIUrl":"10.1016/j.vprsr.2024.101177","url":null,"abstract":"<div><div>Lagochilascariasis is a neglected zoonosis that affects domestic and wild mammals, including humans, and can form nodules, especially on the neck. Although emerging, it is considered a rare disease in the Americas and, therefore, the objective was to report an atypical case of recurrent otitis with the formation of polyps in the ear canal in a domestic feline associated with lagochilascariasis in Brazil. A cat had a purulent exudate in one of her ears and responded poorly to treatments. During an otoendoscopy procedure, a polyp and nematodes were removed and sent for histopathological and parasitological diagnosis. Nematodes were subjected to DNA extraction, whose amplification of the 18S, <em>cox</em>1 and 12S genes in the Polymerase Chain Reaction (PCR) and genetic sequencing confirmed the presence of <em>Lagochilascaris minor</em>. To our knowledge, this is the first description of recurrent otitis with the formation of polyps in the ear canal associated with lagochilascariasis in domestic cats and the description of this atypical case may contribute to the elucidation of new clinical cases. Additionally, new molecular sequences are provided, contributing to the knowledge of the parasite.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101177"},"PeriodicalIF":1.4,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prevalence and molecular characterization of Ascaridia galli in chickens from Minoufiya Governorate, Egypt","authors":"Mahmoud AbouLaila ,&nbsp;Maram Mahmoud ,&nbsp;Heba Wheeb ,&nbsp;Makoto Igarashi ,&nbsp;Ahmed Elkhtam ,&nbsp;Soad Menshawy","doi":"10.1016/j.vprsr.2024.101170","DOIUrl":"10.1016/j.vprsr.2024.101170","url":null,"abstract":"<div><div><em>Ascaridia galli</em> causes weight loss, emaciation, anemia, decreased egg production, and sometimes, intestinal obstruction and death in birds, leading to economic losses in the poultry industry. This research aimed to record the occurrence of <em>A. galli</em> in free-range chickens at farmers' houses in three villages in Ashmoun City, Minoufiya Governorate, Egypt. Additionally, molecular characterization was conducted using internal transcribed spacer 1 (ITS-1) region PCR and sequence analysis. A total of 570 chickens from 570 small flocks, each ranging in size from 10 to 20 free-range chickens, were investigated for the presence of <em>A. galli</em>. DNA was extracted from 10 adult worms collected from Shoshai and Elmanil-Dowib villages and subjected to PCR amplification and sequence analysis. The overall occurrence of <em>A. galli</em> in Ashmoun City was 38 %, with Elmanil-Dowib village having the highest prevalence at 45 %. The oldest chickens, over one year old, had the highest occurrence rate at 56 %, while females showed a higher occurrence (44 %) than males (15 %). The highest occurrence was observed during winter (47 %). The mean intensity and abundance of <em>A. galli</em> in Ashmoun were 5.52 and 2.07, respectively. The ITS-1 sequences of <em>A. galli</em> from Ashmoun, Minoufiya, Egypt had up to 100 % identity and clustered within the same genetic clade as <em>A. galli</em> from Egypt, Poland, and Bangladesh. Haplotype and nucleotide diversity analyses revealed that the sequences from Ashmoun represent a single haplotype and show no nucleotide mutations. This study presents the first report of the occurrence and genetic characterization of <em>A. galli</em> in Baladi chickens in Ashmoun City, Minoufiya, Egypt, thereby enhancing the understanding of <em>A. galli</em> epidemiology in this district and developing effective control strategies.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101170"},"PeriodicalIF":1.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bat ectoparasites (Diptera: Streblidae and Acari: Spinturnicidae) from an urban area in the Amazon-Cerrado transition","authors":"Alan Eriksson ,&nbsp;Sergio Gomes da Silva ,&nbsp;Francimeire Fernandes Ferreira","doi":"10.1016/j.vprsr.2024.101175","DOIUrl":"10.1016/j.vprsr.2024.101175","url":null,"abstract":"<div><div>Parasites significantly influence ecosystems by controlling host populations and spreading diseases, thereby impacting ecological balances. In the Neotropics, hematophagous bat flies and mites are common ectoparasites of bats. The state of Mato Grosso, Brazil, hosts a diverse bat fauna across its Amazon Forest, Cerrado, and Pantanal habitats. We described bat flies and wing mites associated with bats in an urban area in the Amazon-Cerrado transition. Despite the expected diversity of bat in the study area, we expect to find a low number of ectoparasites species, as urban areas are typically associated with reduced parasite diversity. Bats were captured using mist nets, and ectoparasites collected manually or with tweezers and identified under the stereomicroscope. We found 10 species of ectoparasites (seven bat flies and three wingmites) from 181 bats across 22 species. The study found low ectoparasite diversity, possibly due to the small number of bats captured or the constraints found in the urban environment. Most observed bat-ectoparasite associations were consistent with previous studies, but some unexpected associations suggested possible contamination or transient relationships. This research fills a gap in the knowledge of bat ectoparasites in Mato Grosso, contributing to understanding bat-ectoparasite dynamics in diverse habitats.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101175"},"PeriodicalIF":1.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ursicoptes americanus infestation of American black bears (Ursus americanus) in Virginia, USA","authors":"Jillian Broadhurst ,&nbsp;Raquel Francisco ,&nbsp;Peach Van Wick ,&nbsp;Karra Pierce ,&nbsp;David McRuer ,&nbsp;Ernesto Dominguez ,&nbsp;Leigh-Ann Horne ,&nbsp;Jess Ransier ,&nbsp;Michael J. Yabsley","doi":"10.1016/j.vprsr.2024.101172","DOIUrl":"10.1016/j.vprsr.2024.101172","url":null,"abstract":"<div><div>American black bears (<em>Ursus americanus)</em> admitted to a Virginia rehabilitation center were tested for <em>Ursicoptes americanus</em>. From 2014 to 2023, 23 of 150 (15.3 %) bears were positive with higher prevalence in juveniles and females. Several bears had localized or multifocal, moderate lesions or alopecia consistent with mange; however, some had no clinical signs associated with mange. Several bears were co-infested with <em>Sarcoptes scabiei</em>. These data show that infestation with <em>U. americanus</em> mites is common and does not always cause disease. However, there is a need to understand potential mange-causing mites in black bears, especially because sarcoptic mange cases continue to increase in eastern bear populations.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101172"},"PeriodicalIF":1.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toxoplasmal meningoencephalitis in a 14 week-old shelter cat with presumed feline infectious peritonitis","authors":"Amira Abdu ,&nbsp;M. Erin Henry ,&nbsp;Nicole M. André ,&nbsp;Andrew D. Miller ,&nbsp;Manigandan Lejeune ,&nbsp;Elizabeth A. Berliner ,&nbsp;Gary R. Whittaker","doi":"10.1016/j.vprsr.2024.101173","DOIUrl":"10.1016/j.vprsr.2024.101173","url":null,"abstract":"<div><div>Toxoplasmal meningoencephalitis is a sporadic condition that is often misdiagnosed antemortem, frequently resulting in euthanasia especially in resource-limited settings. Here we report a case of a 7-week-old female domestic shorthair cat from an animal shelter who presented in a compromised condition and continued to display clinical signs consistent with a “failure to thrive” kitten. Weight loss and decreased activity were observed, and later on, neurological dysfunction became apparent. Based on clinical signs, non-effusive feline infectious peritonitis (FIP) was strongly suspected. Other possible conditions, such as a portosystemic shunt or toxoplasmosis, were also considered. Due to a poor prognosis, euthanasia was elected. Molecular testing at necropsy revealed no evidence for feline coronavirus infection; however, histopathological examination of the brain tissue revealed disseminated necrotizing meningoencephalitis with the presence of <em>Toxoplasma gondii</em> bradyzoites and tachyzoites, which was further confirmed by PCR and sequence analysis. In hindsight, it became clear that the kitten's failure to thrive was due to severe neurological compromise caused by overwhelming toxoplasmosis infection. This report underscores the diagnostic challenges associated with feline neurological disorders.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101173"},"PeriodicalIF":1.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occurrence and molecular characterization of Cryptosporidium oocysts in chickens from Egypt, and a meta-analysis for Cryptosporidium infections in chickens worldwide","authors":"Ahmed Essam ,&nbsp;Bassem Elmishmishy ,&nbsp;Enas Hammad ,&nbsp;Salah Abu Elwafa ,&nbsp;Ibrahim Abbas","doi":"10.1016/j.vprsr.2024.101169","DOIUrl":"10.1016/j.vprsr.2024.101169","url":null,"abstract":"<div><div><em>Cryptosporidium</em> is a leading cause of diarrhea in children and immunocompromised patients. Various animals and birds can also be infected with this protist, and <em>Cryptosporidium</em> zoonosis is common. A few reports have been published worldwide on <em>Cryptosporidium</em> infections in chickens. The present study surveyed <em>Cryptosporidium</em> infections in chickens from Dakahlia governorate, Egypt. <em>Cryptosporidium</em> oocysts were tested, using the Ziehl Neelsen modified acid-fast staining, in 884 chickens collected from various farms and live bird markets (LBMs) in Dakahlia governorate, Egypt. COWP (<em>Cryptosporidium</em> oocyst wall protein)-PCR testing coupled with isolate sequencing was conducted for 10 <em>Cryptosporidium</em>-positive samples. Intestinal contents of 58 (6.6 %) out of the surveyed chickens in Dakahlia, Egypt, had <em>Cryptosporidium</em> oocysts. The native breed (Balady) had a significantly higher prevalence than the commercial breeds. Oocysts of two different size ranges were detected; 4–5.5 × 4–5 μm and 6–7 × 5–6 μm. Two of the ten PCR-tested samples were successfully sequenced and identified as <em>Cryptosporidium parvum</em>. The present study conducted also the first meta-analysis describing the epidemiology, clinical disease, and species diversity of <em>Cryptosporidium</em> infecting chickens worldwide. The pooled <em>Cryptosporidium</em> prevalence in 18,579 chickens tested worldwide was 18.3 %, with insignificant geographical variations. The prevalence was two-fold higher (40.5 %) at the flock level. Chickens collected from LBMs (30.5 %) had significantly higher pooled prevalence than farmed chickens (14.4 %). Insignificant prevalence variations were detected according to the production type (broiler or layer), diagnostic method, or disease status. Three <em>Cryptosporidium</em> species common to infect birds were molecularly identified in 760 chickens tested worldwide: <em>Cryptosporidium baileyi</em>, <em>Cryptosporidium meleagridis</em>, and <em>Cryptosporidium galli</em>, with the former being the most frequently detected. <em>Cryptosporidium parvum</em> was detected in a few samples mostly from free-range chickens. In conclusion, potential <em>C. parvum</em> zoonosis from chickens is suggested in Egypt, where <em>C. parvum</em> is common among humans and various animals. Given that chicken has a substantial role in the global <em>C. meleagridis</em> zoonoses, and no bird-specific <em>Cryptosporidium</em> spp. were detected in the tested samples from Egypt, we do recommend a large-scale molecular survey to detect various species and genotypes infecting chickens throughout various Egyptian governorates.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101169"},"PeriodicalIF":1.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research and characterization of Cryptosporidium spp. in the domestic cat (Felis catus): First description of C. felis in the state of Goiás and C. muris in the Midwest region of Brazil","authors":"Leda Margarita Castaño Barrios ,&nbsp;Lorrayne Honorio de Paula ,&nbsp;Fernando Borges Bosso ,&nbsp;Vando Edésio Soares ,&nbsp;Marcelo Vasconcelos Meireles ,&nbsp;Dunya Mara Cardoso Moraes ,&nbsp;Guido Fontgalland Coelho Linhares ,&nbsp;Jenner Karlisson Pimenta dos Reis ,&nbsp;Weslen Fabricio Pires Teixeira ,&nbsp;Valéria de Sá Jayme","doi":"10.1016/j.vprsr.2024.101167","DOIUrl":"10.1016/j.vprsr.2024.101167","url":null,"abstract":"<div><div>With the increasingly close coexistence between pets and humans, coupled with reports of <em>Cryptosporidium</em> cross-infection between felines and their guardians, research aimed at understanding the epidemiology of these parasites in specific regions has become necessary. The principal objective of this study was to undertake a molecular characterization of <em>Cryptosporidium</em> in fecal samples from felines in the state of Goiás, Brazil (which is unprecedented for the region), and to assess the risk factors involved in the infection of these animals in the aforementioned locale. A total of 95 fecal samples were collected from domestic felines in the municipality of Goiânia, Goiás, Brazil. All the animals involved were categorized by sex (male or female), lifestyle (stray or domiciled), and age (under six months or six months and older). After collection, all fecal aliquots underwent genomic DNA extraction, followed by a nested PCR (nPCR) technique targeting the 18 s rRNA gene. Subsequently, sequencing of all amplified products was performed to diagnose <em>Cryptosporidium</em> parasites. In addition to searching for <em>Cryptosporidium</em> in feces, all felines underwent serological testing for Feline Immunodeficiency Virus (FIV) antibodies (IgG) using the Enzyme-Linked Immunosorbent Assay (ELISA). Of all the fecal samples analyzed, 17.9 % (17/95) tested positive for the presence of <em>Cryptosporidium</em> spp. DNA, with the variable “age under six months” being the only statistically significant risk factor (<em>p</em> ≤ 0.05) for feline infection. <em>C. felis</em> was the most prevalent species, identified in 88.2 % (15/17) of the positive samples. <em>C. muris</em> was the second most diagnosed species, confirmed in 5.9 % (1/17) of the positive samples. Of all the feline serological samples evaluated, 48.42 % (46/95) were positive for anti-FIV IgG. It was confirmed that 75 % (3/4) of all adult animals positive for <em>Cryptosporidium</em> showed positive (50.00 % [2/4]) or indeterminate (25.00 % [1/4]) results for FIV. This unprecedented study provides the first report of parasites from the genus <em>Cryptosporidium</em> in domestic felines in the state of Goiás, including the first report of <em>C. felis</em> in the state and of <em>C. muris</em> in Midwest Brazil.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101167"},"PeriodicalIF":1.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular epidemiological survey of Babesia species infecting cattle in Paraguay","authors":"Claudia Esther Silvera Rojas ,&nbsp;Thillaiampalam Sivakumar ,&nbsp;Ngigi Noel Muthoni Mumbi ,&nbsp;Believe Ahedor ,&nbsp;Maria Fátima Rodríguez Valinotti ,&nbsp;Tomás Javier Acosta ,&nbsp;Naoaki Yokoyama","doi":"10.1016/j.vprsr.2024.101162","DOIUrl":"10.1016/j.vprsr.2024.101162","url":null,"abstract":"<div><div>Paraguay, an agricultural country in South America, has a high prevalence of tick infestations in its cattle population due to warm temperatures, high humidity, and extensive grazing management practices. Consequently, <em>Babesia</em> infections, which are transmitted by ticks, might have a wide distribution in Paraguay, but the current status of these infections remains uncertain. Therefore, we aimed to assess the infection status of three clinically significant <em>Babesia</em> species, including <em>Babesia bovis</em>, <em>Babesia bigemina</em>, and <em>Babesia naoakii</em>, among cattle populations in Paraguay. Blood samples were collected from a total of 326 cattle across nine departments in Paraguay, and their DNAs were screened with species-specific PCR assays. Of the surveyed cattle, single infections of <em>B. bovis</em> and <em>B. bigemina</em> were detected in 24 (7.4 %) and 127 (39.0 %), respectively, while co-infection with both the parasite species was detected in 38 (11.7 %). In contrast, all of the surveyed cattle were negative for <em>B. naoakii</em> infection. The prevalence of <em>B. bigemina</em>-single infection was higher in the Eastern region (49.0 %) compared to the Western region (34.6 %), in cattle under extensive management (51.3 %) compared to those under semi-intensive management (34.6 %), and in <em>Bos indicus</em> cattle (50.3 %) compared to <em>Bos taurus</em> (15.8 %). Our findings demonstrated a wide distribution of <em>B. bovis</em> and <em>B. bigemina</em> infections among cattle in Paraguay, underscoring the importance of implementing effective control measures to reduce the potential economic losses associated with bovine babesiosis.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"57 ","pages":"Article 101162"},"PeriodicalIF":1.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}