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ectoparasites

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https://www.readbyqxmd.com/read/28331833/survey-of-spatial-distribution-of-vector-borne-disease-in-neighborhood-dogs-in-southern-brazil
#1
Caroline Constantino, Edson Ferraz Evaristo de Paula, Ana Pérola Drulla Brandão, Fernando Ferreira, Rafael Felipe da Costa Vieira, Alexander Welker Biondo
Neighborhood dogs may act as reservoirs and disseminators of vector-borne diseases in urban areas. Accordingly, the aim of this study was to ascertain the health status and the vector-borne pathogens infecting dogs living in public areas with high levels of human movement in the city of Curitiba, southern Brazil. Blood samples from 21 neighborhood dogs that were found in nine of 22 bus stations and two public parks were subjected to a complete blood cell (CBC) count, serum biochemical profiling, a commercial rapid ELISA test and a commercial real-time PCR panel of vector-borne diseases...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28327890/draft-genome-of-the-honey-bee-ectoparasitic-mite-tropilaelaps-mercedesae-is-shaped-by-the-parasitic-life-history
#2
Xiaofeng Dong, Stuart D Armstrong, Dong Xia, Benjamin L Makepeace, Alistair C Darby, Tatsuhiko Kadowaki
Background: The number of managed honey bee colonies has considerably decreased in many developed countries in recent years and ectoparasitic mites are considered as major threats to honey bee colonies and health. However, their general biology remains poorly understood. Results: We sequenced the genome of Tropilaelaps mercedesae , the prevalent ectoparasitic mite infesting honey bees in Asia and predicted 15,190 protein-coding genes which were well supported by the mite transcriptomes and proteomic data...
February 22, 2017: GigaScience
https://www.readbyqxmd.com/read/28316410/first-record-of-gnathia-sp-an-ectoparasitic-isopod-isolated-from-the-coral-reef-fish-heniochus-acuminatus-collected-from-the-gulf-of-mannar-region-southeast-coast-of-india
#3
G Jayanthi, M Anand, G Chelladurai, A K Kumaraguru
An ectoparasitic isopod, Gnathia sp. was found in the Gill chambers of Heniochus acuminatus collected from the Gulf of Mannar region, Southeast coast of India. The present study signifies the new record of Gnathia sp. an coral reef ectoparasitic isopod captured from the gill net during October 2014. Among the 36 specimens examined 5 specimens were infested with Pranzia larvae of Gnathia sp. The size of the isopods were ranged from 1.5 to 3.2 mm and the host fish length varied between 119 and 230 mm. They were specifically found attached to the gill chambers and no damage observed in the lamellar pattern...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28316406/prevalence-of-ectoparasites-in-dogs-of-shimoga-karnataka
#4
C M Krishna Murthy, K J Ananda, J Adeppa
A study was carried out to ascertain the status of ecto-parasites infesting dogs of Shimoga region. A total of 120 dogs with the history of skin problems presented to the local hospitals and local pet clinics of Shimoga region were screened for different ecto-parasites. The ticks, fleas and lice were collected, processed and identified. The skin scrapings were also collected from the affected dogs and processed for identification of mites. Out of 120 dogs examined, 59 (49.1 %) had harboured ecto-parasites...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28316385/spatial-distribution-of-ectoparasites-on-the-gills-of-the-mullet-liza-macrolepis-the-effects-of-pollution
#5
Ruchika Kumar, Rokkam Madhavi, Bade Sailaja
Spatial distribution of ectoparasites on the gills of the mullet Liza macrolepis collected from two sites, the unpolluted reference site (Site I) and the heavily polluted North western arm of Visakhapatnam harbour (Site II), was analysed. Of the various ectoparasite species found on the gills of the mullet, only Ancyrocephalus vanbenedeni (Monogenea) and Dermergasilus varicoleus (Copepoda), occurred commonly at both the sites with more or less high prevalence and mean intensity. A. vanbenedeni at site I preferred gill arch 1 and posterior most and central sections, whereas at site II, it showed preference for gill arch 3, and posterior and proximal sections of the gill...
March 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28302574/the-arginine-vasotocin-and-serotonergic-systems-affect-interspecific-social-behaviour-of-client-fish-in-marine-cleaning-mutualism
#6
Zegni Triki, Redouan Bshary, Alexandra S Grutter, Albert F H Ros
Many species engage in mutualistic relationships with other species. The physiological mechanisms that affect the course of such social interactions are little understood. In the cleaning mutualism, cleaner fish Labroides dimidiatus do not always act cooperatively by eating ectoparasites, but sometimes cheat by taking bites of mucus from so-called "client" reef fish. The physiological mechanisms in these interspecific interactions, however, are little studied. Here, we focussed on three neuromodulator systems known to play important roles in intraspecific social behaviour of vertebrates to examine their role in clients' interspecific behaviour...
March 14, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28291601/molecular-detection-of-hepatozoon-spp-in-domestic-dogs-and-wild-mammals-in-southern-pantanal-brazil-with-implications-in-the-transmission-route
#7
Keyla Carstens Marques de Sousa, Marina Pugnaghi Fernandes, Heitor Miraglia Herrera, Jyan Lucas Benevenute, Filipe Martins Santos, Fabiana Lopes Rocha, Wanessa Teixeira Gomes Barreto, Gabriel Carvalho Macedo, João Bosco Campos, Thiago Fernandes Martins, Pedro Cordeiro Estrela de Andrade Pinto, Darci Barros Battesti, Eliane Mattos Piranda, Paulo Henrique Duarte Cançado, Rosangela Zacarias Machado, Marcos Rogério André
Hepatozoon parasites comprise intracellular apicomplexan parasites transmitted to vertebrate animals by ingestion of arthropods definitive hosts. The present work aimed to investigate the occurrence of Hepatozoon spp. in wild animals, domestic dogs and their respective ectoparasites, in southern Pantanal region, central-western Brazil, by molecular techniques. Between August 2013 and March 2015, 31 coatis (Nasua nasua), 78 crab-eating foxes (Cerdocyon thous), seven ocelots (Leopardus pardalis), 42 dogs (Canis lupus familiaris), 110 wild rodents (77 Thichomys fosteri, 25 Oecomys mamorae, and 8 Clyomys laticeps), 30 marsupials (14 Thylamys macrurus, 11 Gracilinanus agilis, 4 Monodelphis domestica and 1 Didelphis albiventris), and 1582 ticks and 80 fleas collected from the sampled animals were investigated...
February 22, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28289260/host-heterogeneity-affects-both-parasite-transmission-to-and-fitness-on-subsequent-hosts
#8
Jessica F Stephenson, Kyle A Young, Jordan Fox, Jukka Jokela, Joanne Cable, Sarah E Perkins
Infectious disease dynamics depend on the speed, number and fitness of parasites transmitting from infected hosts ('donors') to parasite-naive 'recipients'. Donor heterogeneity likely affects these three parameters, and may arise from variation between donors in traits including: (i) infection load, (ii) resistance, (iii) stage of infection, and (iv) previous experience of transmission. We used the Trinidadian guppy, Poecilia reticulata, and a directly transmitted monogenean ectoparasite, Gyrodactylus turnbulli, to experimentally explore how these sources of donor heterogeneity affect the three transmission parameters...
May 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28279151/168-million-years-old-marine-lice-and-the-evolution-of-parasitism-within-isopods
#9
Christina Nagler, Matúš Hyžný, Joachim T Haug
BACKGROUND: Isopods (woodlice, slaters and their relatives) are common crustaceans and abundant in numerous habitats. They employ a variety of lifestyles including free-living scavengers and predators but also obligate parasites. This modern-day variability of lifestyles is not reflected in isopod fossils so far, mostly as the life habits of many fossil isopods are still unclear. A rather common group of fossil isopods is Urda (190-100 million years). Although some of the specimens of different species of Urda are considered well preserved, crucial characters for the interpretation of their lifestyle (and also of their phylogenetic position), have so far not been accessible...
March 9, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28274808/diversity-of-rickettsiae-in-a-rural-community-in-northern-california
#10
Nicole Stephenson, Alexandra Blaney, Deana Clifford, Mourad Gabriel, Greta Wengert, Patrick Foley, Richard N Brown, Mark Higley, Sarah Buckenberger-Mantovani, Janet Foley
Far northern California forests are highly biodiverse in wildlife reservoirs and arthropod vectors that may propagate rickettsial pathogens in nature. The proximity of small rural communities to these forests puts people and domestic animals at risk of vector-borne infection due to spillover from wildlife. The current study was conducted to document exposure to rickettsial pathogens in people and domestic animals in a rural community, and identify which rickettsiae are present in sylvatic and peri-domestic environments near this community...
February 27, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28260532/the-role-of-chewing-lice-phthiraptera-philopteridae-as-intermediate-hosts-in-the-transmission-of-hymenolepis-microps-cestoda-cyclophyllidea-from-the-willow-ptarmigan-lagopus-lagopus-aves-tetraonidae
#11
D Pistone, M Lindgren, P Holmstad, N K Ellingsen, H Kongshaug, F Nilsen, A Skorping
The cestode Hymenolepis microps is an intestinal parasite of tetraonid birds, including the willow ptarmigan (Lagopus lagopus). This parasite is able to maintain a high prevalence and intensity throughout the year, even in a subarctic environment in bird populations with relatively low host densities, indicating effective transmission routes. Willow ptarmigan consume mainly vegetal material and active consumption of invertebrates is confined to the first two or three weeks of life. Ptarmigan are infected by different species of ectoparasites, of which two species of feather lice, Lagopoecus affinis and Goniodes lagopi, are the most abundant...
March 6, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28251698/use-of-oral-fluralaner-for-the-treatment-of-psoroptes-cuniculi-in-15-naturally-infested-rabbits
#12
Galia Sheinberg, Camilo Romero, Rafael Heredia, Miguel Capulin, Enrique Yarto, Juan Carpio
BACKGROUND: Psoroptes cuniculi, a nonburrowing ear mite, is a common ectoparasite of rabbits. Constant irritation of the auditory canal by the presence of this mite can lead to otitis externa or otoacariasis. OBJECTIVE: The goal of this study was to evaluate the effect of fluralaner on rabbits naturally infested with P. cuniculi and exhibiting clinical signs. ANIMALS: Fifteen female New Zealand domestic rabbits with otitis due to naturally occurring infestation with P...
March 1, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28249707/bartonella-species-pathogenic-for-humans-infect-pets-free-ranging-wild-mammals-and-their-ectoparasites-in-the-caatinga-biome-northeastern-brazil-a-serological-and-molecular-study
#13
Mariana Campos Fontalvo, Alexsandra Rodrigues de Mendonça Favacho, Andreina de Carvalho Araujo, Naylla Mayana Dos Santos, Glauber Meneses Barboza de Oliveira, Daniel Moura Aguiar, Elba Regina Sampaio de Lemos, Mauricio Claudio Horta
This study verified the occurrence of Bartonella spp. in dogs, cats, wild mammals and their ectoparasites in Petrolina and Lagoa Grande Counties, Pernambuco, located in a semi-arid region in Northeastern Brazil. Anti-Bartonella spp. antibodies were detected by indirect immunofluorescence assay (IFA) in 24.8% of dogs (27/109) and in 15% of cats (6/40). Bartonella sp. DNA was identified by PCR performed on DNA extracted from blood and ectoparasites using primers targeting Bartonella sp. gltA and ribC genes in 100% (9/9) of Pulex irritans from Cerdocyon thous, 57...
February 26, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28249626/association-between-an-ectoparasitic-copepod-caligus-sp-and-the-monogenean-udonella-cf-caligorum-johnston-1835-on-a-catfish-population
#14
D Fogel, J L Fuentes, L M Soto, C López
We analysed the association between a monogenean (Udonella cf. caligorum Johnston 1835) and its copepod host (Caligus sp.) living on a wild population of Arius herzbergii Bloch, 1794 in a north-eastern coastal lagoon from Venezuela. This study characterized infestation levels and analysed the effects of monogeneans on the fecundity and hatching success of the copepod host, as well as damage to its egg capsules and genital complex. A total of 218 Caligus specimens were analysed (94 males, 110 females and 14 immature stages) in which a total of 1017 monogeneans were found...
March 2, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28249569/unity-in-defence-honeybee-workers-exhibit-conserved-molecular-responses-to-diverse-pathogens
#15
Vincent Doublet, Yvonne Poeschl, Andreas Gogol-Döring, Cédric Alaux, Desiderato Annoscia, Christian Aurori, Seth M Barribeau, Oscar C Bedoya-Reina, Mark J F Brown, James C Bull, Michelle L Flenniken, David A Galbraith, Elke Genersch, Sebastian Gisder, Ivo Grosse, Holly L Holt, Dan Hultmark, H Michael G Lattorff, Yves Le Conte, Fabio Manfredini, Dino P McMahon, Robin F A Moritz, Francesco Nazzi, Elina L Niño, Katja Nowick, Ronald P van Rij, Robert J Paxton, Christina M Grozinger
BACKGROUND: Organisms typically face infection by diverse pathogens, and hosts are thought to have developed specific responses to each type of pathogen they encounter. The advent of transcriptomics now makes it possible to test this hypothesis and compare host gene expression responses to multiple pathogens at a genome-wide scale. Here, we performed a meta-analysis of multiple published and new transcriptomes using a newly developed bioinformatics approach that filters genes based on their expression profile across datasets...
March 2, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28246452/social-engineering-of-societal-knowledge-in-livestock-science-can-we-be-more-empathetic
#16
REVIEW
R K Ravikumar, Devesh Thakur, Hardev Choudhary, Vivek Kumar, Amol S Kinhekar, Tushar Garg, K Ponnusamy, G R Bhojne, Vasanth M Shetty, Vipin Kumar
Questions are raised in effective utilization of farmer's wisdom by communities in their farming. Planners support to livelihood emphasize mostly of inputs from outside and not setting up sustainable goals. Formal institutions and planners of program are finding constraints and sceptical in wider dissemination of indigenous knowledge research system (IKRS). This is in spite of evidence that considerable number of farmer's in livestock sector depends on IKRS. In this context, it is pertinent to showcase dissemination potential of these knowledge system(s) in larger geographical areas...
January 2017: Veterinary World
https://www.readbyqxmd.com/read/28241029/squamation-and-ecology-of-thelodonts
#17
Humberto G Ferrón, Héctor Botella
Thelodonts are an enigmatic group of Paleozoic jawless vertebrates that have been well studied from taxonomical, biostratigraphic and paleogeographic points of view, although our knowledge of their ecology and mode of life is still scant. Their bodies were covered by micrometric scales whose morphology, histology and the developmental process are extremely similar to those of extant sharks. Based on these similarities and on the well-recognized relationship between squamation and ecology in sharks, here we explore the ecological diversity and lifestyles of thelodonts...
2017: PloS One
https://www.readbyqxmd.com/read/28228679/a-new-species-of-aspidophryxus-isopoda-dajidae-ectoparasitic-on-mysidella-hoshinoi-mysidae-in-japan
#18
Michitaka Shimomura
A new dajid, Aspidophryxus izuensissp. n., is described from seven females and six males found infesting the dorsal carapaces of specimens of Mysidella hoshinoi Shimomura, 2016 (Mysidae: Mysidellinae) associated with an unidentified species of sea anemone (Haloclavidae) from Izu-Oshima Island, Sagami Sea, central Japan. Aspidophryxus izuensis sp. n. differs from its congeners in having a body length about as long as wide, widest at the anterior part in females; an elongate frontal part of the cephalon, half as long as wide in females; the frontal margin of the cephalon exceeding the anterior margins of lateral lamellae in females; an unsegmented, vermiform, elongate pleon in females; and a uropod composed of a protopod and an inner and outer ramus in males...
2017: ZooKeys
https://www.readbyqxmd.com/read/28222795/parasites-of-parasites-of-bats-laboulbeniales-fungi-ascomycota-on-bat-flies-diptera-nycteribiidae-in-central-europe
#19
Danny Haelewaters, Walter P Pfliegler, Tamara Szentiványi, Mihály Földvári, Attila D Sándor, Levente Barti, Jasmin J Camacho, Gerrit Gort, Péter Estók, Thomas Hiller, Carl W Dick, Donald H Pfister
BACKGROUND: Bat flies (Streblidae and Nycteribiidae) are among the most specialized families of the order Diptera. Members of these two related families have an obligate ectoparasitic lifestyle on bats, and they are known disease vectors for their hosts. However, bat flies have their own ectoparasites: fungi of the order Laboulbeniales. In Europe, members of the Nycteribiidae are parasitized by four species belonging to the genus Arthrorhynchus. We carried out a systematic survey of the distribution and fungus-bat fly associations of the genus in central Europe (Hungary, Romania)...
February 21, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28215226/transcription-factors-as-a-target-for-vaccination-against-ticks-and-mites
#20
O A E Sparagano
Ticks and mites are well-known ectoparasites as potential vectors for numerous bacteria, viruses, and parasites. Many being blood feeders add to physiological deterioration, morbidity, and mortality of their vertebrate hosts. To control them, transcription factors have been identified and studied in their role to sustain such arthropod pests. This paper summarizes some of the work done on those factors involved during blood feeding, reproduction, or when interacting with their pathogens and symbiont populations...
2017: Advances in Protein Chemistry and Structural Biology
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