Veterinary parasitology, regional studies and reports最新文献

{"title":"Epizootiology and pathophysiology of bovine oriental theileriosis in Mizoram, India","authors":"Champak Deka ,&nbsp;Kalyan Sarma ,&nbsp;Chethan Gollahalli Eregowda ,&nbsp;Parimal Roychoudhury ,&nbsp;Neeraj Thakur ,&nbsp;Dilip Nama ,&nbsp;Kiran Jayappa ,&nbsp;Satyabrat Dutta ,&nbsp;Dhruba Das ,&nbsp;Palash Jyoti Sonowal ,&nbsp;Rahul Singh Arya ,&nbsp;Thingujam Chaa Tolenkhomba ,&nbsp;Dibyajyoti Talukdar ,&nbsp;Priyanka Choudhary ,&nbsp;Girin Kalita","doi":"10.1016/j.vprsr.2025.101287","DOIUrl":"10.1016/j.vprsr.2025.101287","url":null,"abstract":"<div><div>Bovine oriental theileriosis is an important tick-borne haemoprotozoan disease caused by <em>Theileria orientalis</em>. The present study was carried out to investigate the prevalence, associated risk factors, and haemato-biochemical and pathological alterations associated with naturally occurring <em>T. orientalis</em> infection in cattle, an emerging disease in Mizoram, India. A polymerase chain reaction (PCR) detection based cross-sectional study on the prevalence of <em>T. orientalis</em> infection in cattle was undertaken from June 2019 to January 2022. Blood samples were collected from the clinically infected crossbred cattle (<em>n</em> = 12) to examine the haemogram, and serum samples were used for evaluating biochemical profile and oxidant-antioxidant status. The diagnosis of <em>T. orientalis</em> infection in cattle was carried by microscopic blood smear examination and further confirmed by PCR. Haemogram and serum biochemical profile were evaluated by automated blood cell counter and clinical chemistry analyzer, respectively. Oxidant and antioxidant parameters were estimated by using commercially available assay kits. In the present study, PCR was found to be more sensitive than microscopic blood smear examination, and an overall prevalence of 7.29 % was recorded for <em>T. orientalis</em> infection by PCR assay. Tick infestation, uncemented floor, and absence of acaricidal treatment were found be potential risk factors for <em>T. orientalis</em> infection. Haemogram and serum biochemical findings revealed anaemia, thrombocytopenia, hypoproteinemia, elevated aspartate aminotransferase (AST) and blirubin levels, and azotemia. The mean values of superoxide dismutase (SOD), glutathione (GSH) and total antioxidant capacity (TAC) were significantly (<em>P</em> &lt; 0.05) lower, whereas the mean value lipid hydroperoxide (LPO) were significantly (<em>P</em> &lt; 0.05) higher in cattle infected with <em>T. orientalis</em>, suggesting oxidative stress. When total erythrocyte count (TEC) was correlated with LPO (<em>r</em> = −0.781, <em>P</em> &lt; 0.01), it revealed a negative correlation, while in case of GSH (<em>r</em> = 0.744, <em>P</em> &lt; 0.01), SOD (<em>r</em> = 0.794, <em>P</em> &lt; 0.01), and TAC (<em>r</em> = 0.796, <em>P</em> &lt; 0.01), a positive correlation was noticed. The correlation of oxidative stress indices with TEC suggested that erythrocyte peroxidation could play an important role in the pathogenesis of anaemia induced by <em>T. orientalis</em> infection. There are very few studies on the pathological aspects of <em>T. orientalis</em> infection in cattle. Thus, the outcome of the present study could add valuable information to the current existing knowledge about the disease.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"62 ","pages":"Article 101287"},"PeriodicalIF":1.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138764","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 Toxoplasma gondii in green turtles (Chelonia mydas): Implications for wildlife and ecosystem health","authors":"Alinne Petris ,&nbsp;Juliane Araújo Greinert-Goulart ,&nbsp;Paula Angélica Roratto ,&nbsp;Brenda Letícia Tiedt ,&nbsp;Tiffany Christiny Emmerich da Silva ,&nbsp;Daniela Fink ,&nbsp;Diego Averaldo Guiguet Leal","doi":"10.1016/j.vprsr.2025.101286","DOIUrl":"10.1016/j.vprsr.2025.101286","url":null,"abstract":"<div><div><em>Toxoplasma gondii</em> is a protozoan parasite with varied implications for human and animal health. However, knowledge about its ecoepidemiology and the infection of a wide range of marine animals are incipient or poorly explored in many coastal areas worldwide. The goal of this study was to investigate the presence of <em>T. gondii</em> in green turtles (<em>Chelonia mydas</em>) found along the northern coast of Santa Catarina State, Brazil. A variety of tissues from eight green turtles were tested using Nested-PCR and <em>T. gondii</em> DNA was detected in brain and liver of two green turtles. This study provides the first evidence of <em>T. gondii</em> in marine turtles highlighting the importance of considering this species as accidental hosts for the parasite.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"62 ","pages":"Article 101286"},"PeriodicalIF":1.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135011","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":"Incidence, genetic characterization and phylogenetic analysis of Cryptosporidium species infecting domestic pigeons (Columba livia domestica) in Egypt","authors":"Fatema A. Gamal,&nbsp;Azza M. Abdel-Wahab,&nbsp;Marwa M. Khalifa,&nbsp;Reem M. Ramadan,&nbsp;Ahmed M. Nassar","doi":"10.1016/j.vprsr.2025.101283","DOIUrl":"10.1016/j.vprsr.2025.101283","url":null,"abstract":"<div><div>The current investigation was performed to study the incidence, morphological characters and molecular identification of <em>Cryptosporidium</em> species infecting domestic pigeons in the Giza governorate, Egypt. The incidence of <em>Cryptosporidium</em> spp. by modified Ziehl-Neelsen stain technique was 12 % and 14 % of the examined intestinal and bursal samples respectively. Seasonal incidence showed that winter had the highest rate (15.38 % and 21.74 %) while the lowest one was in autumn (7.95 % and 8.33 %) of the intestinal and bursal samples respectively. Two forms of <em>Cryptosporidium</em> spp. were detected. The small oocysts had average size (4.6 ± 0.63 × 4.44 ± 0.76 μm) while the large one had average size (5.64 ± 0.39 × 5.57 ± 0.41 μm). The PCR products of <em>Cryptosporidium</em> spp. were analyzed using two pairs of primers. The analysis revealed that the amplicons of the 18S rRNA region had 830 bp and 760 bp. Sequencing and phylogenetic analysis of the amplified products indicated that the species under investigation were <em>C. meleagridis</em> and <em>C. baileyi</em> with accession numbers OR631411 and OR631417, respectively. To our knowledge, the identification and genetic characterization of <em>C. meleagridis</em> and <em>C. baileyi</em> within the genus <em>Cryptosporidium</em> infecting domestic pigeons is reported for the first time in Egypt.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"62 ","pages":"Article 101283"},"PeriodicalIF":1.4,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123997","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":"Investigation of Schmallenberg virus and update on the serological status of toxoplasma gondii in goat herds in the semiarid region of Pernambuco state, Brazil","authors":"Gustavo Oliveira Alves Pinto ,&nbsp;Maria de Nazaré Santos Ferreira ,&nbsp;Pollyanne Raysa Fernandes de Oliveira ,&nbsp;Erika Fernanda Torres Samico-Fernandes ,&nbsp;Renata Pimentel Bandeira de Melo ,&nbsp;José Wilton Pinheiro Junior ,&nbsp;Rodolfo de Moraes Peixoto ,&nbsp;Rinaldo Aparecido Mota","doi":"10.1016/j.vprsr.2025.101284","DOIUrl":"10.1016/j.vprsr.2025.101284","url":null,"abstract":"<div><div>Reproductive disorders represent a significant obstacle to animal production. In this regard, infections with Schmallenberg virus (SBV) and <em>Toxoplasma gondii</em> have been linked to reproductive failures in small ruminants, leading to economic losses. This study aimed to conduct a seroepidemiological investigation of Schmallenberg virus and <em>Toxoplasma gondii</em> infection in goat farms located in the Agreste region of Pernambuco, northeastern Brazil. A total of 368 animals were analyzed, none of which were positive for anti-SBV antibodies, and 15.48 % (57/368) tested positive for anti-<em>T. gondii</em> IgG antibodies. Furthermore, a significant association was observed between <em>T. gondii</em> infection and intensive farming practices, dairy production, and the water source provided to the animals. Thus, SBV is not yet circulating in the goat population of the Agreste region of Pernambuco State. However, <em>T. gondii</em> infections persist and may be associated with reproductive losses, thereby posing potential economic risks to goat producers in the region.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"62 ","pages":"Article 101284"},"PeriodicalIF":1.4,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116412","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, diversity and risk factors of gastrointestinal parasites in dogs housed at official shelters across Portugal","authors":"Patrícia Lopes ,&nbsp;Jacinto Gomes ,&nbsp;João Lozano ,&nbsp;Mariana Louro ,&nbsp;Luís Madeira de Carvalho ,&nbsp;Isabel Pereira da Fonseca ,&nbsp;Ricardo Lobo ,&nbsp;Fernando Monteiro ,&nbsp;Liliana Carvalho ,&nbsp;Paulo Afonso ,&nbsp;Miguel Almas ,&nbsp;Mónica V. Cunha","doi":"10.1016/j.vprsr.2025.101285","DOIUrl":"10.1016/j.vprsr.2025.101285","url":null,"abstract":"<div><div>Gastrointestinal parasites (GIP) are among the most common pathogens that affect dogs globally, with some species representing a zoonotic threat. Stray and shelter dogs are especially vulnerable to parasitism as their clinical history is often unknown, and copro-parasitological analyses are seldom performed upon animal arrival at shelters. In Portugal, official shelters play a pivotal role in sheltering and managing stray dogs; however, little is known about the GIP infection status of these animals. This study thus aimed to determine the occurrence of GIP in dogs housed at official shelters in Portugal and explore potential variables contributing to the GIP burden. Between November 2021 and October 2022, a total of 355 dog faecal samples were collected from shelters across the country. These samples were either obtained individually from dogs or pooled from groups of animals housed together, and were analysed using the Mini-FLOTAC technique with zinc sulphate flotation solution (specific gravity 1.35) to detect, identify, and quantify GIP shedding intensity. Over 16 % (57/355) of the samples were GIP-positive. The most frequently observed parasites were <em>Trichuris vulpis</em> (20/355), <em>Toxocara canis</em> (19/355), <em>Ancylostoma</em> spp. (13/355), and <em>Cystoisospora canis</em> (8/355). Co-infections with two parasitic agents were detected in three individual samples: two dogs harboured both <em>T. vulpis</em> and <em>C. canis</em>, while one dog was co-infected with <em>T. vulpis</em> and <em>T. canis</em>. Most positive samples (53/59) exhibited a moderate to high shedding intensity, with over 50 eggs or oocysts per gram of faeces – EPG or OPG, respectively. Only a few showed a low shedding intensity of less than 10 EPG or OPG. When examining individual faecal samples, the average prevalence rate of GIP in shelter dogs across sampled regions was 15.9 % (33/208). A single taeniid infection was detected and confirmed, via molecular assays, to be due to <em>Echinococcus granulosus</em>. The occurrence of <em>Ancylostoma</em> spp. and <em>T. vulpis</em> were significantly correlated with the number of dogs housed in shelters. The presence of <em>Ancylostoma</em> spp. eggs was significantly associated with season and region, while consistency of faeces was significantly associated with the presence of <em>T. canis</em> eggs and GIP co-infection status.</div><div>This study represents the first nationwide screening for GIP in shelter dogs in Portugal. Our findings underscore the importance of regular screening in shelters, namely upon animals' arrival, and the need for active, effective management of infections to control GIP spread within the shelter and to prevent possible occupational zoonotic transmission.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"62 ","pages":"Article 101285"},"PeriodicalIF":1.4,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116413","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":"Evidence of canine intestinal parasites and associated fecal bacteria among urban and rural dog parks in central Appalachia U.S.","authors":"Matthew Kolp ,&nbsp;M. Marcello ,&nbsp;A. Holt ,&nbsp;K. Rossi ,&nbsp;C. Zurawski ,&nbsp;K. Cancelliere ,&nbsp;S. Telemeco ,&nbsp;J.F. Swift ,&nbsp;K. Purple ,&nbsp;C. Faulkner","doi":"10.1016/j.vprsr.2025.101280","DOIUrl":"10.1016/j.vprsr.2025.101280","url":null,"abstract":"<div><div>Public dog parks provide opportunities for exercise and socialization, benefiting both dogs and their owners. However, dog parks can serve as reservoirs for gastrointestinal (GI) parasitic helminths, posing risks to canine and public health. This study investigated the presence of three common GI parasites, hookworm (<em>Ancylostoma</em> spp.), roundworm (<em>Toxocara canis</em>), and whipworm (<em>Trichuris vulpis</em>), in abandoned fecal samples from nine dog parks in Central Appalachia, comparing rural and urban environments. We also examined the relationship between parasite presence and fecal bacterial community composition using 16S rRNA sequencing. A total of 346 fecal samples were collected during 43 visits to parks in Tennessee and Kentucky. Centrifugal flotation (1.2 spg) revealed evidence of parasitic infection in 26.9 % of samples, with a higher percentage found in samples from rural parks (40.7 % of 135 samples) compared to urban parks (18.0 % of 211 samples; <em>p</em> &lt; 0.0001). Hookworm was the most common parasite identified (18.8 %), with greater numbers of eggs in rural parks. Mixed infections were observed in 6.9 % of samples and found more often in rural dog parks. 16S rRNA sequencing indicated that bacterial diversity and community composition were influenced by park location and parasite presence. Rural parks exhibited more diverse bacterial communities and higher proportions of <em>Actinomycetota</em>, while urban parks showed higher levels of <em>Fusobacteriota</em>. Parasite-positive samples had greater bacterial diversity and were associated with specific taxa, such as <em>Clostridia</em>, linked to GI issues.</div><div>Our findings highlight the increased potential of GI parasitic helminth contamination in rural dog parks and highlight the potential for parasites to alter canine gut microbiomes. These results emphasize the need for public health education on routine anthelmintic treatments to reduce zoonotic risks. The study further underscores the importance of a One Health approach to managing parasite transmission in communal canine spaces. Future work should explore the mechanisms underlying GI parasite-microbiome interactions and extend these findings to other geographic regions.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"62 ","pages":"Article 101280"},"PeriodicalIF":1.4,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144088734","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 Theileria orientalis Ikeda genotype associated with disease in cattle, Georgia, USA","authors":"Grazieli Maboni ,&nbsp;Mackenzie Long ,&nbsp;Michael J. Yabsley ,&nbsp;Amy McKinney ,&nbsp;Ingrid Fernandez ,&nbsp;Gustavo Garcia ,&nbsp;Brianna Cuellar ,&nbsp;Nicholas Rinke ,&nbsp;Cassan Pulaski ,&nbsp;Kevin Lahmers ,&nbsp;Katie Metcalf ,&nbsp;Dustin Weaver ,&nbsp;Janemarie Hennebelle ,&nbsp;Binu T. Velayudhan","doi":"10.1016/j.vprsr.2025.101279","DOIUrl":"10.1016/j.vprsr.2025.101279","url":null,"abstract":"<div><div><em>Theileria orientalis</em> genotype Ikeda is a tickborne parasite that infects red and white blood cells and causes bovine infectious anemia. The primary tick vector for <em>T. orientalis</em> Ikeda is the longhorned tick (<em>Haemaphysalis longicornis</em>). This tick was first detected in the United States in 2017 and in the state of Georgia in 2021, however, to date, no clinical cases of theileriosis in cattle have been reported in the state of Georgia.</div><div>A Highland calf was clinically diagnosed with anemia, marked lethargy, tachycardia, tachypnea, decreased rumen contraction rate, dry and flaking skin, and thin and rough hair coat with areas of alopecia. Blood smear evaluation revealed intraerythrocytic piroplasms. PCR and sequencing of the major piroplasm surface protein (MPSP) gene identified <em>T. orientalis</em> genotype Ikeda 2. Another Highland calf from the same farm also presented intraerythrocytic piroplasms in the blood smear and was positive for <em>T. orientalis</em>, but no clinical signs were observed. Clinical signs resolved with ceftiofur crystalline free acid 6.6 mg/kg and imidocarb dipropionate 3 mg/kg, subcutaneously; however, both animals were still positive for <em>T. orientalis</em> after 7 months of treatment.</div><div>This is the first clinical case of <em>Theileria orientalis</em> Ikeda genotype 2 diagnosed in Georgia, USA. This is the furthest south where this invasive pathogen has been identified, representing its fast and expanding range in the USA. The presence of <em>T. orientalis</em> Ikeda in Georgia and other states represents an emerging infectious disease issue with the potential for significant animal health and economic impact.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"62 ","pages":"Article 101279"},"PeriodicalIF":1.4,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068675","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":"Chicken gastrointestinalhelminths parasites: Coprological prevalence, spatial distribution, and morph-anatomical species identification in South Gondar zone, north West Ethiopia","authors":"Seid Kassaw,&nbsp;Mekonen Baylie,&nbsp;Asnakew Mulaw,&nbsp;Abraham Ayele","doi":"10.1016/j.vprsr.2025.101275","DOIUrl":"10.1016/j.vprsr.2025.101275","url":null,"abstract":"<div><div>Gastrointestinal helminths, including cestodes and nematodes, represent significant health and economic challenges to the poultry industry due to their pathogenic impact on chickens. Despite the substantial risks they pose, limited research has focused on these parasitic infections. Therefore, a cross-sectional study was conducted from July 2023 to June 2024 in the South Gondar zone to determine the prevalence, distribution, and identify the parasitic gastrointestinal helminthes in chickens. A total of 418 chickens were randomly selected from study districts and subjected to faecal examinations (faecal flotation technique), while 21 chickens from positive cases were selected for post-mortem examination. Both egg morphology and adult parasite identification were employed to identify gastrointestinal helminth species. This study revealed that 289 (69.1 %) of chickens were infected by gastrointestinal helminth parasites. Of these, 141 (33.7 %) were cestodes, 110 (26.3 %) nematodes, and 38 (9 %) mixed infections respectively. The primary cestode species identified were <em>Raillietina tetragona</em> (15.7 %) and <em>Davainea proglottina</em> (10.5 %), and for nematodes, the predominant species were <em>Ascaridia galli</em> (20.8 %), <em>Heterakis gallinarum</em> (12.4 %), and <em>Capillaria annulata</em> (0.4 %). The significant associations were observed concerning age, breed, agroecology, district, and management practices (<em>P</em> &lt; 0.05). However, no significant associations were found between parasite prevalence and the chickens' sex (<em>P</em> &gt; 0.05). These findings highlight the high prevalence of helminth infections as a major challenge for chickens raised in extensive farming systems within the South Gondar zone, underscoring the imperative need for effective control strategies recommended.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"62 ","pages":"Article 101275"},"PeriodicalIF":1.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936106","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":"Diversity of parasitic and non-parasitic fauna in Apis mellifera colonies: Implications for honeybee health and apiary management in two climatic zones of Burkina Faso, West Africa","authors":"Souhaïbou Sawadogo ,&nbsp;Oswald Gilbert Dingtoumda ,&nbsp;Hugues Roméo Bazié ,&nbsp;Valentin Zoungrana ,&nbsp;Yacouba Soro ,&nbsp;Franck Lirassé Gnané ,&nbsp;Modeste Florentin Bationo ,&nbsp;Zakaria Ilboudo","doi":"10.1016/j.vprsr.2025.101277","DOIUrl":"10.1016/j.vprsr.2025.101277","url":null,"abstract":"<div><div>The hive can harbour a variety of beneficial or harmful organisms alongside the honeybee. These pests act individually or collectively and contribute to declining bee populations worldwide. Here, we looked at the diversity of macro-organisms associated with bees in hives in Burkina Faso. The study took place in the Sudanian and Sudano-Sahelian climatic zones. The aim was to inventory and analyse their diversity in 238 hives from 48 apiaries. The results showed that in the Sudanian zone, 80.6 % of hives hosted other organisms in addition to bees, compared with 46.9 % in the Sudano-Sahelian (<em>P</em> &lt; 0.05). Thus, in the Sudanian zone, 22 animal species were encountered, compared with 23 in the Sudano-Sahelian. The Sudano-Sahelian zone was characterized by greater species diversity (Shannon H = 1.301 vs. 1.158) and a more balanced species distribution (Equitability J = 0.4149 vs. 0.3747) than the Sudanian zone. <em>Varroa destructor</em> and <em>Aethina tumida</em> were most abundant in the study area (63.5 % and 21.33 % respectively). We discussed possible or established interactions between these different organisms and their bee hosts. This study could pave the way for actions to improve the resilience of local bees in the face of current environmental and health challenges.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"61 ","pages":"Article 101277"},"PeriodicalIF":1.4,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932140","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":"Phenotypic resistance to ivermectin in Hyalomma anatolicum populations from north-western state of Punjab, India","authors":"Jyoti,&nbsp;Manisha,&nbsp;Harkirat Singh,&nbsp;Nirbhay Kumar Singh","doi":"10.1016/j.vprsr.2025.101278","DOIUrl":"10.1016/j.vprsr.2025.101278","url":null,"abstract":"<div><div><em>Hyalomma anatolicum</em> is a multi-host ixodid tick species that significantly contributes to the spread of pathogens, posing economic and health challenges for livestock populations. This study assessed the acaricide resistance status to ivermectin in <em>H. anatolicum</em> field populations from north-western state of Punjab, India by larval immersion test. Dose-mortality response was analysed using probit transformation of percent mortality and logarithmically transformed drug concentrations, and lethal concentration (LC₅₀, LC₉₀ and LC₉₉) and resistance ratio values were determined. Bioassay results revealed resistance status against ivermectin in all studied field isolates with RR₅₀ values ranging from 8.87 to 95.22. The maximum value was recorded in MKS (RR₅₀ = 95.22), followed by FKA (RR₅₀ = 48.78) and minimum in BNN isolate (RR₅₀ = 8.87). The findings highlight a concerning trend of resistance development in field isolates of multi-host cattle tick from Punjab state and thereby emphasizing the need for resistance management strategies, including integrated tick management practices, rotational use of acaricides and adoption of alternative control measures.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"61 ","pages":"Article 101278"},"PeriodicalIF":1.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941196","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}