the first report of hepatozoon canis identified in vulpes vulpes and ticks from italy. | this is the first report on the presence of hepatozoon canis in vulpes vulpes in italy. during the years 2005 and 2006, a total of 119 foxes were collected and their spleen tissues were screened by microscopy, polymerase chain reaction, and sequencing. in the same area, 290 ticks were picked off from dogs or collected from the environment. microscopy detected inclusion bodies regarded as belonging to the genus hepatozoon in four samples, whereas molecular diagnostics evidenced 16 foxes (13.4%) a ... | 2010 | 20420538 |
failure of imidocarb dipropionate to eliminate hepatozoon canis in naturally infected dogs based on parasitological and molecular evaluation methods. | the efficacy of imidocarb dipropionate for the treatment of hepatozoon canis infection was studied in three naturally infected asymptomatic dogs followed longitudinally over 8 months. response to treatment was followed by monitoring blood counts, parasitemia levels in blood, parasite in concentrated buffy-coat smears and by pcr. the dogs were initially treated with a low dose of 3 mg/kg imidocarb dipropionate twice a month and when parasitemia persisted after five treatments, with the regular do ... | 2010 | 20444549 |
blood parasites of mound-building mouse, mus spicilegus petényi, 1882 (mammalia, rodentia). | mound-building mice, mus spicilegus, were studied for the blood parasites in eastern slovakia, vicinity kechnec village near kosice town (kosická kotlina basin, 21 degrees 14' e, 48 degrees 33' n) during years 2002-2005. overall, 251 specimens were examined. the parasites were detected using microhematokrit centrifugation technique and on the giemsa's method stained blood smears and light microscopy. the parasites were found in 3.57% of specimens; 1.20% of mice were infected with bartonella sp., ... | 2010 | 20450010 |
developmental stages and molecular phylogeny of hepatozoon tuatarae, a parasite infecting the new zealand tuatara, sphenodon punctatus and the tick, amblyomma sphenodonti. | the developmental stages of hepatozoon tuatarae were elucidated in both the tuatara host, sphenodon punctatus and the tick, amblyomma sphenodonti. pcr amplicons from a. sphenodonti samples identified dna matching h. tuatarae. dissection of tick samples showed oogenesis and sporogony occurring in the haemocoel of a. sphenodonti with the average mature oocyst size being 236 x 228 microm. partial sequence data of the parasite's small subunit ribosomal gene, obtained by pcr, was used for phylogeneti ... | 2010 | 20451526 |
prevention of endemic canine vector-borne diseases using imidacloprid 10% and permethrin 50% in young dogs: a longitudinal field study. | canine vector-borne diseases (cvbds) are highly prevalent and increasing in distribution worldwide. a longitudinal study was conducted in southern italy to determine the incidence of and protection against cvbd-causing pathogens in dogs treated with a combination of imidacloprid 10% and permethrin 50% (imper). one hundred eleven autochthonous young dogs were divided into group a (n=63) and group b (n=48), both groups containing dogs positive and negative for one or more cvbd-causing pathogens. a ... | 2010 | 20591573 |
molecular detection of hepatozoon spp. in brazilian and exotic wild carnivores. | hepatozoon spp. are apicomplexan parasites that infect a wide variety of animals. the infection occurs through the ingestion of a hematophagous arthropod definitive host. herein, we assessed the presence of hepatozoon spp. in 165 captive wild felids and 100 captive wild canids using molecular techniques. we found that 6 felids (4 little spotted cats, 1 jaguarondi, and 1 puma) and 5 canids (2 bush dogs, 1 fox, 1 crab-eating fox, and 1 maned wolf) were positive for hepatozoon spp. hepatozoon spp. ... | 2010 | 20630658 |
molecular detection of ehrlichia canis, anaplasma bovis, anaplasma platys, candidatus midichloria mitochondrii and babesia canis vogeli in ticks from israel. | : ticks are vectors of important pathogens of human and animals. therefore, their microbial carriage capacity is constantly being investigated. the aim of this study was to characterize the diversity of domestic animal pathogens in ticks collected from vegetation and the ground, from different parts of israel. non-engorged questing adult ticks were collected from 13 localities. a total of 1196 ticks in 131 pools-83 pools of rhipicephalus turanicus and 48 of rhipicephalus sanguineus (with two to ... | 2011 | 20636417 |
social network structure and parasite infection patterns in a territorial reptile, the tuatara (sphenodon punctatus). | we investigated whether the parasite load of an individual could be predicted by its position in a social network. specifically, we derived social networks in a solitary, territorial reptile (the tuatara, sphenodon punctatus), with links based on the sharing of space, not necessarily synchronously, in overlapping territories. tuatara are infected by ectoparasitic ticks (amblyomma sphenodonti), mites (neotrombicula spp.) and a blood parasite (hepatozoon tuatarae) which is transmitted by the tick. ... | 2010 | 20637210 |
molecular detection of theileria annae and hepatozoon canis in foxes (vulpes vulpes) in croatia. | an epizootiological field study on tick-borne protozoan infections in foxes (vulpes vulpes) was carried out in different parts of croatia. spleen samples of 191 carcasses of red foxes killed in sanitary hunting, were examined for the presence of hematozoa by polymerase chain reaction (pcr) and subsequent sequencing. the investigation revealed four species of hematozoa in 57 foxes (30%), namely theileria annae, theileria sp. 3182/05 and hepatozoon canis. t. annae was found in 10 foxes (5%), theil ... | 2010 | 20646832 |
molecular survey and genetic characterization of tick-borne pathogens in dogs in metropolitan recife (north-eastern brazil). | to identify dna of the main tick-borne pathogens in dogs from recife (brazil), polymerase chain reactions were carried out on blood samples of dogs treated at the veterinary hospital of the universidade federal rural de pernambuco from march 2007 to june 2008. the detection of dna was performed using specific primers. amplicons were analyzed through electrophoresis and sequencing. a phylogenetic tree was constructed using the upgma method, revealing that the sequences were closely related to tho ... | 2010 | 20680344 |
fatal canine distemper infection in a pack of african wild dogs in the serengeti ecosystem, tanzania. | in 2007, disease related mortality occurred in one african wild dog (lycaon pictus) pack close to the north-eastern boundary of the serengeti national park, tanzania. histopathological examination of tissues from six animals revealed that the main pathologic changes comprised interstitial pneumonia and suppurative to necrotizing bronchopneumonia. respiratory epithelial cells contained numerous eosinophilic intracytoplasmic inclusion bodies and multiple syncytial cells were found throughout the p ... | 2010 | 20684868 |
first report of hepatozoon sp. in the oregon spotted frog, rana pretiosa. | from 2005 through 2008, we screened 650 oregon spotted frogs (rana pretiosa) from three populations in central oregon, usa, for hemoparasites. a hepatozoon sp., not previously reported in r. pretiosa, was found in one population of frogs, mostly as intracellular gamonts at a prevalence of 10.5% with parasitemias ranging from 0.02% to greater than 42% of erythrocytes within individual frogs. intra-and extracellular merozoites were present, but rare. a potential vector, the mosquito culex boharti, ... | 2010 | 20688705 |
caiman-biting mosquitoes and the natural vectors of hepatozoon caimani in brazil. | mosquitoes that feed on crocodilians are poorly known, despite the potential role of these exothermic animals as reservoirs of arboviruses. in this article, we assessed the frequency, abundance, and temporal variation of caiman-biting mosquitoes as well as searched for the natural vectors of the blood parasite of caimans, hepatozoon caimani, in the pantanal area of central-western brazil from captures conducted bimonthly from september 2006 to september 2007 and in february 2008. a total of 5,27 ... | 2010 | 20695284 |
occurrence of hepatozoon sp. in dogs in the urban area originating from a municipality in southeastern brazil. | the occurrence of hepatozoon sp. infection in dogs was evaluated in the urban area of uberlândia, minas gerais, brazil. the study involved 300 animals, 120 from the veterinary hospital of the federal university of uberlândia's faculty of veterinary medicine, 80 from private clinics, and 100 from the animal protective association (apa). among these animals, 7.66% presented hepatozoon sp. gamonts inside neutrophils. no statistically significant difference was found among the diagnoses based on cap ... | 2010 | 20810218 |
update on the diagnosis and management of hepatozoon spp infections in dogs in the united states. | | 2010 | 20937496 |
description of gamontogonic and sporogonic stages of hepatozoon spp. (apicomplexa, hepatozoidae) from caudisoma durissa terrifica (serpentes, viperidae). | three specimens of caudisoma durissa terrifica infected with hepatozoon spp. were studied. one was parasitized by one type of gamont and the other two were each infected by two morphologically different gamonts. utilizing morphology and morphometry analysis, we concluded that three types of gamonts were very similar and may represent the same hepatozoon species, but at least three different hepatozoon species were infecting the c. durissa terrifica snakes in this study. some of this species caus ... | 2010 | 20972580 |
[not available]. | | 1946 | 21027453 |
a case of hepatozoon canis. | | 1946 | 21028704 |
evolution of clinical, haematological and biochemical findings in young dogs naturally infected by vector-borne pathogens. | longitudinal studies evaluating the evolution of clinical, haematological, biochemical findings in young dogs exposed for the first time to multiple vector-borne pathogens have not been reported. with the objective of assessing the evolution of clinical, haematological and biochemical findings, these parameters were serially monitored in naturally infected dogs throughout a 1-year follow-up period. young dogs, infected by vector-borne pathogens based on cytology or polymerase chain reaction, wer ... | 2010 | 21106311 |
ecology and dynamics of the blood parasite, hepatozoon tuatarae (apicomplexa), in tuatara (sphenodon punctatus) on stephens island, new zealand. | we explored infection patterns and temporal dynamics of the protozoan blood parasite hepatozoon tuatarae (apicomplexa) infecting the tuatara (sphenodon punctatus), a protected reptile living on stephens island, new zealand. in march 2006, we surveyed tuatara in five study sites to examine spatial variation in infection prevalence, and four times, from may 2005 to november 2006, we recaptured marked individuals within three study sites to examine the temporal dynamics of infection. we also examin ... | 2011 | 21270002 |
treatment of hepatozoon americanum infection: review of the literature and experimental evaluation of efficacy. | there is no labeled treatment for dogs with american canine hepatozoonosis (ach), but the drug therapies discussed in this article, although not rapidly curative, may be successful in alleviating acute clinical signs, prolonging life, reducing the number of clinical relapses, and enhancing quality of life. this article also describes a pilot trial conducted to assess the efficacy of a novel treatment approach with ponazuril as a stand-alone parasiticide administered for 4 weeks without follow-up ... | 2010 | 21308664 |
oocysts of hepatozoon canis in rhipicephalus (boophilus) microplus collected from a naturally infected dog. | canine hepatozoonosis is a tick-borne disease caused by protozoans of the genus hepatozoon. several tick species have been implicated as potential vectors. therefore, extensive studies are needed to determine the 'natural' endemic cycle of this parasite. this paper presents the first report of the presence of hepatozoon canis oocysts in rhipicephalus (boophilus) microplus collected from an infected dog. | 2011 | 21324597 |
molecular characterization of hepatozoon species in reptiles from the seychelles. | hepatozoon parasites were examined for the first time in reptiles from the seychelles islands. although both prevalence and intensity were low, hepatozoon species were detected in individuals from 2 endemic species, the lizard mabuya wrightii and the snake lycognathophis seychellensis. this was confirmed using visual identification and through sequencing part of the 18s rrna gene. phylogenetic analysis indicates that the hepatozoon on the seychelles form a monophyletic lineage, although more dat ... | 2010 | 21348615 |
the first detection of babesia species dna from japanese black bears (ursus thibetanus japonicus) in japan. | in this study, we tried to detect protozoan blood parasites from the liver or blood of 156 japanese black bears (ursus thibetanus japonicus) in iwate prefecture of japan by polymerase chain reaction. two amplicons (approximately 540 bp and 480 bp) were detected by amplification for v4 hyper-variable regions of the 18s rrna gene. approximately 540-bp products were obtained in 119 samples (76.3%) and were considered to be dna of hepatozoon ursi. approximately 480-bp products were obtained in 22 sa ... | 2011 | 21376138 |
failure of combination therapy with imidocarb dipropionate and toltrazuril to clear hepatozoon canis infection in dogs. | current treatments with imidocarb dipropionate for infected dogs with hepatozoon canis do not always provide parasitological cure. the objective of this study is to determine whether concomitant use of toltrazuril may potentiate the effect of imidocarb dipropionate in the management of h. canis infection (hci). twelve dogs were determined to have naturally hci based on clinical signs, identification of the parasite in blood smears, and serologic assay. the animals were allocated randomly to one ... | 2011 | 21472405 |
diagnosis of hepatozoon canis in young dogs by cytology and pcr. | abstract: | 2011 | 21489247 |
molecular survey of hepatozoon species in lizards from north africa. | abstract the prevalence of hepatozoon parasites in 460 lizards from north africa was studied by amplification and sequencing of the 18s rrna gene. the phylogenetic analysis of the 18s rrna gene provides new insights into the phylogeny of these parasites with multiple genetically distinct lineages recovered. parasite prevalence differed significantly between lacertid lizards and geckos. our results show that there is limited host specificity and no clear relation to the geographical distribution ... | 2010 | 21506764 |
novel hepatozoon in vertebrates from the southern united states. | abstract novel hepatozoon spp. sequences collected from previously unrecognized vertebrate hosts in north america were compared with documented hepatozoon 18s rrna sequences in an effort to examine phylogenetic relationships between the different hepatozoon organisms found cycling in nature. an approximately 500 base pair fragment of 18s rdna common to hepatozoon spp. and some other apicomplexans was amplified and sequenced from the tissues or blood of 16 vertebrate host species from the souther ... | 2011 | 21506825 |
molecular characterization of hepatozoon sp. in cats from são luís island, maranhão, northeastern brazil. | few molecular studies have been done concerning the molecular characterization of hepatozoon species among domestic and wild felids. the present work aimed to characterize molecularly the presence of hepatozoon sp. dna in cat blood samples from são luís island, maranhão state, northeastern brazil. edta-whole blood samples were collected from 200 domestic cats with outdoor and wood areas access from são luís, maranhão, brazil. each sample of extracted dna was used as a template in pcr reactions a ... | 2011 | 21607692 |
perspectives on canine and feline hepatozoonosis. | two species of hepatozoon are currently known to infect dogs and cause distinct diseases. hepatozoon canis prevalent in africa, asia, southern europe, south america and recently shown to be present also in the usa causes infection mainly of hemolymphoid organs, whereas hepatozoon americanum prevalent in the southeastern usa causes myositis and severe lameness. h. americanum is transmitted by ingestion of the gulf coast tick amblyomma maculatum and also by predation on infected prey. h. canis is ... | 2011 | 21620568 |
anurans as paratenic hosts in the transmission of hepatozoon caimani to caimans caiman yacare and caiman latirostris. | prevalence of hepatozoon caimani has been reported in 76% of caimans caiman yacare from the pantanal region. culex (melanoconion) spp. mosquitoes were recently identified as natural vectors of this parasite. however, culicids are not typically eaten by crocodilians, suggesting that the main transmission route is through ingestion of insectivorous vertebrates, such as anurans. the susceptibility of wild frogs leptodactylus chaquensis, leptodactylus podicipinus and scinax nasicus to infection by h ... | 2011 | 21808978 |
a survey of canine tick-borne diseases in india. | abstract: background: there are few published reports on canine babesia, ehrlichia, anaplasma, hepatozoon and haemotropic mycoplasma infections in india and most describe clinical disease in individual dogs, diagnosed by morphological observation of the microorganisms in stained blood smears. this study investigated the occurrence and distribution of canine tick-borne disease (tbd) pathogens using a combination of conventional and molecular diagnostic techniques in four cities in india. results: ... | 2011 | 21771313 |
hepatozoon canis infection in ticks during spring and summer in italy. | hepatozoon canis is a common protozoan of dogs, being among the most prevalent tick-borne pathogens infecting dogs around the world. it is primarily transmitted by rhipicephalus sanguineus, the brown dog tick. in this study we tested ticks collected from dogs and from the environment in order to track the origin of an outbreak of h. canis infection detected in october 2009 in a private dog shelter in southern italy. ticks from dogs (n?=?267) were collected during the spring of 2009, whereas tick ... | 2011 | 21769649 |
developmental stages of hepatozoon hemprichii sp. nov. infecting the skink scincus hemprichii and the tick hyalomma impeltatum from saudi arabia. | abstract the whole life cycle of hepatozoon hemprichii sp. nov. was discussed in the vertebrate host scincus hemprichii and the vector hyalomma impeltatum. erythrocytic stages of 18+1.8 x 4+0.8 ´ü¡m developed in the haemocoel of ticks to sporozoites within 16-18 days. schizogony occurred in the liver parenchyma and the endothelial cells of blood capillaries in lung and spleen. mature schizonts of 27+3.11 x 20.13+3.0 ´ü¡m producing 28 merozoites were usually recorded. the merozoites measured 13+1 ... | 2011 | 21711097 |
a case of iriomote cat (prionailurus bengalensis iriomotensis) with hepatozoon felis parasitemia. | we herein present clinical findings of an iriomote cat with hepatozoon felis parasitemia. a male iriomote cat was captured for ecological analyses three times from january 2010 to january 2011. although this cat did not show any hematological abnormalities at the time of the first capture, h. felis parasitemia and increased serum creatine kinase levels were detected at the second and third captures. h. felis infection was confirmed by polymerase chain reaction, and amplified 18s ribosomal rna ge ... | 2011 | 21685717 |
molecular detection of hepatozoon canis and babesia canis vogeli in domestic dogs from cuiabá, brazil. | the objective of this study was to report for the first time infection by hepatozoon spp. and babesia spp. in 10 dogs from the city of cuiabá, state of mato grosso, central-western brazil. a pair of primers that amplifies a 574 bp fragment of the 18s rrna of hepatozoon spp., and a pair of primers that amplifies a 551 bp fragment of the gene 18s rrna for babesia spp. were used. six dogs were positive for babesia spp., and 9 were positive for hepatozoon spp. co‑infection of babesia spp. and hepato ... | 2011 | 21961759 |
prevalence of blood parasites in seabirds - a review. | abstract: | 2011 | 22035144 |
Pathological Study of Blood Parasites in Rice Field Frogs, Hoplobatrachus rugulosus (Wiegmann, 1834). | One hundred and forty adult rice field frogs, Hoplobatrachus rugulosus (Wiegmann, 1834), were collected in Srakaew province, Thailand. For blood parasite examination, thin blood smears were made and routinely stained with Giemsa. The results showed that 70% of the frogs (98/140) were infected with 5 species of blood parasites, including a Trypanosoma rotatorium-like organism, Trypanosoma chattoni, Hepatozoon sp. a, Hepatozoon sp. b, and Lankesterella minima. Pathological examination of the liver ... | 2011 | 21918731 |
Infection with a Hepatozoon sp. closely related to Hepatozoon felis in a wild Pampas gray fox (Lycalopex -Pseudalopex -gymnocercus) co-infected with canine distemper virus. | A species of Hepatozoon closely related to Hepatozoon felis found in the skeletal and cardiac muscle of a wild Pampas gray fox (Lycalopex gymnocercus) is described. The fox was euthanized after showing severe incoordination. On necropsy and histopathology there was bilateral, diffuse, severe, sub-acute, necrotizing bronchointerstitial pneumonia, with intracytoplasmic and intranuclear eosinophilic inclusion bodies. Canine distemper virus was detected by immunohistochemistry in the bronchiolar epi ... | 2011 | 22112977 |
Morphological, morphometric, and molecular characterization of Hepatozoon spp. (Apicomplexa, Hepatozoidae) from naturally infected Caudisona durissa terrifica (Serpentes, Viperidae). | Hepatozoon spp. are the most frequent intracellular protozoa in snakes. Considering the variety of parasites infecting specimens of Caudisona durissa terrifica and the divergent data in literature where only two species, Hepatozoon romani and Hepatozoon capsulata, are described, the aim of this study was to morphologically, morphometrically, and molecularly characterize Hepatozoon spp. from some naturally infected specimens of C. durissa terrifica, and observe changes caused by these protozoa in ... | 2011 | 21922238 |
molecular characterization of hepatozoon spp. infection in endangered indian wild felids and canids. | hepatozoon species are parasites that infect a wide variety of domestic and wild animals. the objective of this study was to perform the molecular detection and characterization of hepatozoon spp. in asiatic lion, indian tiger, indian leopard, indian wild dog, indian domestic dog and cat based on partial 18s rrna gene sequences from hepatozoon spp. in the naturally infected animals. hepatozoon spp. could be detected in blood samples of 5 out of 9 asiatic lions, 2 out of 5 indian tigers, 2 out of ... | 2011 | 22154254 |
epidemiological aspects on vector-borne infections in stray and pet dogs from romania and hungary with focus on babesia spp. | canine arthropod-borne infections are of major interest in small animal practice and have been widely investigated in central and western europe. however, only limited epidemiological data are available from south-eastern european countries, although diseases including babesiosis or dirofilariosis are widely recognised as important canine infections in these countries. a steadily increasing number of dogs imported from south-eastern europe into germany require particular attention by small anima ... | 2011 | 21947342 |
parasites and vector-borne pathogens of southern plains woodrats (neotoma micropus) from southern texas. | from 2008 to 2010, southern plains woodrats (neotoma micropus) from southern texas, were examined for parasites and selected pathogens. eight helminth species were recovered from 97 woodrats including, trichuris neotomae from 78 (prevalence = 80%), ascarops sp. from 42 (43%), nematodirus neotoma from 31 (32%), raillietina sp. from nine (9%), taenia taeniaeformis larvae from eight (8%), and an unidentified spiurid, a scaphiostomum sp. and a zonorchis sp. each from a single woodrat. besnotia neoto ... | 2011 | 22108764 |
molecular survey of apicomplexa in podarcis wall lizards detects hepatozoon, sarcocystis and eimeria species. | abstract the occurrence of apicomplexan parasites in podarcis wall lizards from the iberian peninsula and balearic islands was studied by amplification and sequencing of the 18s rrna gene. species from three genera, hepatozoon, sarcocystis and eimeria were detected. the phylogenetic analysis of the 18s rrna gene provides unexpected insights into the evolutionary history of these parasites. all hepatozoon specimens were recovered as part of a clade already identified in lizards from north afric ... | 2011 | 22128850 |
retrospective evaluation of laboratory data on canine vector-borne infections from the years 2004-2008. | the detection and therapy of canine vector-borne diseases in imported dogs are of major importance in small animal practice. over the last years, the import of dogs from the mediterranean region and southeast europe has increased, countries often endemic for a variety of vector-borne diseases such as babesiosis, hepatozoonosis, leishmaniosis, dirofilariosis or ehrlichiosis. this retrospective study presents the evaluation of data from our diagnostic laboratory on vector-borne infections in impor ... | 2011 | 21950219 |
Cutaneous Hepatozoon canis infection in a dog from New Jersey. | A 7-month-old mixed-breed intact female dog was presented to a private veterinarian with a 2 cm in diameter raised, pruritic, alopecic, subcutaneous, fluctuant swelling over the right eye. Cytology of the mass revealed many degenerate neutrophils, moderate numbers of eosinophils, moderate numbers of macrophages, rare mast cells, and few erythrocytes. Rare neutrophils contained a protozoal agent compatible with a Hepatozoon gamont. Real-time polymerase chain reaction of peripheral blood was posit ... | 2011 | 21908296 |
molecular survey of apicomplexa in podarcis wall lizards detects hepatozoon, sarcocystis and eimeria species. | abstract the occurrence of apicomplexan parasites in podarcis wall lizards from the iberian peninsula and balearic islands was studied by amplification and sequencing of the 18s rrna gene. species from three genera, hepatozoon, sarcocystis and eimeria were detected. the phylogenetic analysis of the 18s rrna gene provides unexpected insights into the evolutionary history of these parasites. all hepatozoon specimens were recovered as part of a clade already identified in lizards from north afric ... | 2011 | 22176558 |
brazilian canine hepatozoonosis. | the genus hepatozoon includes hundreds of species that infect birds, reptiles, amphibians and mammals, in all continents with tropical and subtropical climates. two species have been described in domestic dogs: h. canis, reported in europe, asia, africa, south america and the united states; and h. americanum, which so far has only been diagnosed in the united states. in brazil, the only species found infecting dogs is h. canis. the objective of this review was to detail some aspects of canine he ... | 2011 | 21961746 |
hepatozoon spp infections in the united states. | two hepatozoon spp are recognized as parasites of domestic dogs in the united states, h. canis and h. americanum. h. canis was first described in india in 1905 and has been documented in many areas of the world, although not definitively identified in north america until recently. h. americanum, causing american canine hepatozoonosis, was first documented in a coyote in 1978 and is now considered an emerging etiologic agent of disease in domestic dogs throughout the united states. the authors re ... | 2011 | 22041213 |
neutropenia associated with osteomyelitis due to hepatozoon canis infection in a dog. | a 4-year-old, intact male shiba dog was referred to yamaguchi university animal medical center, yamaguchi, japan for the following complaints: anorexia, lethargy, intermittent fever, gingival bleeding, and abdominal purpura. the dog presented with persistent neutropenia. histopathological examination of the bone marrow sample revealed round to oval structures that resembled hepatozoon micromerozoites and formed a "wheel-spoke" pattern. furthermore, mature neutrophils were observed around these s ... | 2011 | 21697643 |
molecular prevalence and characterization of hepatozoon ursi infection in indian sloth bears (melursus ursinus). | hepatozoon species are parasites that infect a wide variety of domestic and wild animals. the objective of the study was to detect the occurrence of hepatozoon ursi in indian sloth bears and to characterize the parasite based on phylogenetic analysis of the partial 18s rrna gene sequence. hepatozoon infection could be detected in 38 (70%) out of fifty-four blood samples of indian sloth bears (captive and wild), suggestive of high prevalence of hepatozoon infection in indian sloth bears. sequenci ... | 2011 | 21723665 |
molecular characterization of hepatozoon canis in dogs from colombia. | hepatozoonosis is a tick-borne disease whose transmission to dogs occurs by ingestion of oocysts infected ticks or feeding on preys infested by infected ticks. until now, there is no previous report of molecular characterization of hepatozoon sp. in dogs from colombia. edta blood samples were collected from 91 dogs from central-western region of colombia (bogotá, bucaramanga, and villavicencio cities) and submitted to 18s rrna hepatozoon sp. pcr and blood smears confection. phylogenetic analysis ... | 2012 | 22068216 |
A HAEMOCYSTIDIUM (APICOMPLEXA: PLASMODIIDAE) SPECIES OF THE DHUB LIZARD, UROMASTYX AEGYPTIA MICROLEPIS, IN ABU DHABI, DISTINGUISHED BY THE ABSENCE OF PIGMENT. | Abstract The spiny-tailed lizard Uromastyx aegyptia microlepis, in Abu Dhabi is parasitized by Haemocystidium apigmentada n. sp., and 2 species of Hepatozoon. The elongate gametocytes of H. apigmentada are 13-19 X 6-9 m, with length X width 90-133 m, and L/W ratio 1.56-3.17. Gametocytes dimensions do not differ by sex. Gametocytes are unpigmented. Hepatozoon sp. 1 has gamonts with a consistnetly terminal nucleus, with dimensions 13-16 X 4.5-7 m, length X width 58-104 m2, and L/W ratio 2.00-3.2 ... | 2011 | 22141320 |