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Canine vector-borne pathogens in semi-domesticated dogs residing in northern Cambodia.

BACKGROUND: In Southeast Asia, the canine vector-borne pathogens Babesia spp., Ehrlichia canis, Anaplasma platys, Hepatozoon canis, haemotropic mycoplasmas and Dirofilaria immitis cause significant morbidity and mortality in dogs. Moreover, dogs have also been implicated as natural reservoirs for Rickettsia felis, the agent of flea-borne spotted fever, increasingly implicated as a cause of undifferentiated fever in humans in Southeast Asia. The objective of this study was to determine the prevalence and diversity of canine vector-borne pathogens in 101 semi-domesticated dogs from rural Cambodi

Seroprevalence of tick-borne diseases among cattle in the Sudan.

This study was carried out to determine the prevalence of Theileria annulata, Theileria mutans, Babesia bigemina, and Anaplasma marginale antibodies among cattle in the Sudan. A total of 600 serum samples were collected from indigenous (zebu) and crossbred cattle (zebu x Friesian) of both sex and different age groups. Indirect enzyme-linked immunosorbent assay was used to assess antibodies against tick-borne diseases in apparently healthy cattle. The overall prevalence rates of T. annulata, T. mutans, B. bigemina, and A. marginale antibodies were found to be 30.8%, 6.1%, 10.7%, and 38.9%, resp

Incidence and prevalence of tick-borne haemoparasites in domestic ruminants in Ghana.

Giemsa-stained thin blood smears prepared monthly from cattle, sheep and goats in the Greater Accra region of Ghana between May 1994 and December 1996 were examined for presence of tick-borne haemoparasites. The majority of animals were less than 2 months old at the start of the survey. Monthly and cumulative incidences are presented of Anaplasma sp., Babesia bigemina, Borrelia sp., Eperythrozoon sp., Theileria mutans and Theileria velifera in cattle, Anaplasma sp., Borrelia sp., and Theileria sp. in sheep, and Anaplasma sp. in goats. T. mutans was the commonest parasite in cattle, with 100% i

Serologic survey for selected microbial pathogens in bison from Kansas.

A serologic survey was conducted on an American bison (Bison bison) herd in Kansas for antibodies against Brucella spp., Leptospira interrogans serovar canicola, pomona, grippotyphosa, icterohaemorrhagiae, and hardjo, Anaplasma spp., bluetongue virus, infectious bovine rhinotracheitis virus and bovine viral diarrhea virus. There was an increase in prevalence of bluetongue antibodies from 38% in 1987 to 100% in 1989 in animals greater than or equal to 24-mo-old. Prevalences of antibodies against the other livestock pathogens were either negative or at levels associated with previous vaccination

[Occurrence of canine babesiosis in dogs in the Rhine-Main area of Hesse, Germany - a case study of 81 dogs].

OBJECTIVE: Canine babesiosis, an infectious disease transmitted by Dermacentor reticulatus, is exhibiting growing importance in Germany. The … encing was performed in 14 of the 81 dogs (17 %) (B. canis n = 13, B, vulpes n = 1). A simultaneous anaplasmosis infection was detected in 2 dogs. Strikingly, babesiosis cases occurred throughout the year with accumulations in March/April as well as in October.Evaluation of a complete blood cell count revealed pancytopenia in 44 of the 81 animals (54 %). Anemi …

Анализ эпидемиологических характеристик четырех естественных фокальных заболеваний в провинции Шаньдун, Китай, 2009 - 2017 годы: описательный анализ.

СПРАВОЧНАЯ ИНФОРМАЦИЯ: Природные инфокальные заболевания являются серьезными заболеваниями, угрожающими здоровью человека. Они угрожают примерно 100 миллионам людей в провинции Шаньдун и ежегодно вызывают болезни у тысяч людей. Однако информация об эпидемиологических характеристиках естественных фокальных заболеваний в провинции Шаньдун является ограниченной. Цель этого исследования состояла в том, чтобы описать и проанализировать эпидемиологические характеристики естественных фокальных заболеваний в провинции Шаньдун, 2009 - 2017 годы. Мы описываем распространенность и распространение четырех

Совпадение в аннотации оригинала
BACKGROUND: Natural-focal diseases are serious diseases that endanger human health. They threaten about 100 million people in Shandong Provi … natural-focal diseases were severe fever with thrombocytopenia syndrome (SFTS), human granulocytic anaplasmosis (HGA), typhus, and scrub typhus. The high-risk groups of the four diseases were farmers and the elderly. The incidence rate of scrub typhus was significantly higher in females. However, this difference was not seen in the other three diseases. The f …

Risk factors associated with the carriage of Ixodes scapularis relative to other tick species in a population of pet dogs from southeastern Ontario, Canada.

In eastern North America, the blacklegged tick, Ixodes scapularis, is the vector for Borrelia burgdorferi sensu stricto and Anaplasma phagocytophilum, the causal agents for human and canine Lyme disease and anaplasmosis, respectively. The extensive range expansion of I. scapularis in Ontario is a growing veterinary and public health concern. However, there is limited information on the risk factors associated with I. scapularis carriage on dogs. Within an emerging area for Lyme disease risk in southeastern Ontario, we identified the tick species carried by dogs; determined the prevalence of B.…

Molecular analysis of Anaplasma phagocytophilum isolated from patients with febrile diseases of unknown etiology in China.

Although anaplasmosis cases have been nationally identified in China, no human isolates of A. phagocytophilum have been obtained, which limits the analysis of any molecular and genetic contributions to patients' severe clinical manifestations and the study of the bacteria's pathogeneses in China. Given this situation, a joint project was conducted in 2009-2010. A total of 421 febrile cases of unknown etiology were collected and the patients' blood samples were collected for laboratory diagnoses including serologic diagnosis based on the four-fold rise in the anti- A. phagocytophilum IgG titer …

Modeling future climate suitability for the western blacklegged tick, Ixodes pacificus, in California with an emphasis on land access and ownership.

In the western United States, Ixodes pacificus Cooley & Kohls (Acari: Ixodidae) is the primary vector of the agents causing Lyme disease and granulocytic anaplasmosis in humans. The geographic distribution of the tick is associated with climatic variables that include temperature, precipitation, and humidity, and biotic factors such as the spatial distribution of its primary vertebrate hosts. Here, we explore (1) how climate change may alter the geographic distribution of I. pacificus in California, USA, during the 21st century, and (2) the spatial overlap among predicted changes in tick habit…

Primary care clinical provider knowledge and experiences in the diagnosis and treatment of tick-borne illness: a qualitative assessment from a Lyme disease endemic community.

BACKGROUND: Primary care and frontline healthcare providers are often the first point of contact for patients experiencing tick-borne diseas … rticipants and limited knowledge of diagnosis and treatment for two other regionally relevant TBDs, anaplasmosis and babesiosis. Providers described challenges and frustrations in counseling patients with strong preconceptions of LD diagnosis and treatment in the context of chronic infection. Providers desired additional point-of-care resources to facilitate p …

The absence of the drhm gene is not a marker for human-pathogenicity in European Anaplasma phagocytophilum strains.

BACKGROUND: Anaplasma phagocytophilum is a Gram-negative obligate intracellular bacterium that replicates in neutrophil granulocytes. It is … ican samples from different hosts were drhm-positive. Regarding the strains from human granulocytic anaplasmosis cases, 100% (35/35) of European origin were drhm-positive and 100% (14/14) of North American origin were drhm-negative. Human strains from North America and Europe were both part of MLST cluster 1. North American strains from humans belonged to ankA …

A new method for in vitro feeding of Rhipicephalus australis (formerly Rhipicephalus microplus) larvae: a valuable tool for tick vaccine development.

BACKGROUND: Rhipicephalus microplus is a hard tick that has a major impact on cattle health in tropical and subtropical regions because it feeds on cattle and is implicated in the transmission of pathogens that cause diseases such as bovine anaplasmosis and babesiosis. Presently, acaricides are used to control tick infestation but this is becoming increasingly less effective due to the emergence of tick strains that are resistant to one or more classes of acaricides. Anti-tick vaccines are a promising alternative to control tick infestation in cattle. The life-cycle and host preference of R. m…

Sensitive multiplex PCR assay to differentiate Lyme spirochetes and emerging pathogens Anaplasma phagocytophilum and Babesia microti.

BACKGROUND: The infection with Borrelia burgdorferi can result in acute to chronic Lyme disease. In addition, coinfection with tick-borne pa … hod will be able to simultaneously diagnose early to chronic stages of Lyme disease, babesiosis and anaplasmosis using the patients' blood samples. CONCLUSION: Real-time quantitative PCR using specific primers and molecular beacon probes for the selected amplicon described in this study can detect three tick-borne pathogens simultaneously in an accurate manne …

Host-seeking behavior of Ixodes pacificus (Acari: Ixodidae) nymphs in relation to environmental parameters in dense-woodland and woodland-grass habitats.

In the far-western United States, the bacteria that cause Lyme disease (Borrelia burgdorferi, Bb) and human granulocytic anaplasmosis (Anaplasma phagocytophilum, Ap) are transmitted by the western black-legged tick (Ixodes pacificus). In a dense woodland, human behaviors involving contact with wood were recently found to pose greater risk for encountering I. pacificus nymphs than behaviors entailing exclusive exposure to leaf litter. A four-year follow-up study was undertaken in the same woodland and, as a comparison area in one year only, in a nearby woodland-grass habitat to explore the biot…

Molecular epidemiology and phylogenetic analysis of Anaplasma ovis and Anaplasma marginale in Ixodidae infesting livestock in northwestern Iran.

BACKGROUND: Anaplasma marginale and Anaplasma ovis are tick-borne obligate intracellular bacteria causing anaplasmosis in cattle and small ruminants, respectively, with considerable economic losses worldwide. Given the favorable ecological conditions for tick survival and the limitation of data on Anaplasma spp. in local tick populations in northwestern Iran, this study aimed to molecular and phylogenetic analysis of A. ovis and A. marginale in Ixodidae infesting livestock in northwestern Iran. METHODS: In this cross-sectional study, a total of 780 ixodid ticks were collected from livestock a…

Vertical transmission and epidemiological dynamics of bovine tick fever in beef cattle in a Brazilian feedlot system.

Bovine tick fever is endemic in Brazil and responsible for significant economic losses and reduced animal welfare in beef cattle. Understanding disease dynamics, particularly the role of vertical transmission, is crucial for advancing epidemiological knowledge, especially for a disease for which few studies have been conducted in beef cattle. This study evaluated the frequency of tick fever agents across different categories of beef cattle in a feedlot system in Minas Gerais, Brazil, and investigated the occurrence of vertical transmission in newborn calves. A total of 597 animals were assesse

Single and co-infections by Anaplasma platys, Babesia vogeli, Ehrlichia canis, and Hepatozoon canis in dogs from Rio Grande do Norte, Brazil: frequency and molecular characterization.

This study investigated the presence of Anaplasma platys, Babesia vogeli, Ehrlichia canis, and Hepatozoon canis in dogs in Mossoró, Rio Grande do Norte, Brazil, from October 2022 to August 2023. Blood samples were collected from 181 dogs with suspected hemoparasitoses based on clinical and/or laboratory findings (such as hematological alterations) for direct hemoparasite examination on slides, polymerase chain reaction (PCR), and phylogenetic analysis. PCR revealed that 72.3% of dogs were infected with at least one agent. Among these, 44.7% were monoinfected and 27.6% coinfected, with 21.5% in

Seroprevalence of selected vector-borne agents in pet cats using the SNAP® 4Dx® PLUS, United States, 2022-2025.

Tick-borne diseases predominate among vector-borne diseases of human and veterinary importance in the United States (US). Many of the most important tick-borne agents in people, including Borrelia burgdorferi, Anaplasma spp., and Ehrlichia spp. are zoonoses capable of infecting domestic pets. These infections can impact animal health with widely varying severity, ranging from subclinical to life-threatening disease. Serological testing is essential for screening and diagnosis of these infections in pets, as well as for epidemiological investigations. While vast amounts of data are available on

Detection of tick-borne pathogens in Rhipicephalus sanguineus sensu lato and dogs from different districts of Portugal.

Dogs are highly exposed to pathogens transmitted by ectoparasites. The Mediterranean climate of Southern Europe, together with the presence of stray and/or neglected pets in close proximity with humans, contribute for tick expansion and stand for increased risk to infections in humans due to the zoonotic potential of many of these agents. The aim of this study was to perform a molecular survey in dogs (suspected of tick-borne disease and/or infested with ticks), as well as in ticks collected from those animals, from 12 districts of Portugal to investigate the occurrence of Rickettsia spp. and

Molecular epidemiology of Babesia species, Theileria parva, and Anaplasma marginale infecting cattle and the tick control malpractices in Central and Eastern Uganda.

East Coast fever, babesiosis, and anaplasmosis are the major tick-borne diseases affecting cattle productivity in Uganda. The emergence of acaricide-resistant ticks is suspected to have caused a rise in hemoparasites. This study sought to detect and characterize hemoparasites among farms in acaricide-failure hotspots of central as compared to the acaricide-failure naïve areas in Eastern Uganda. Nested PCR assays were performed to determine the prevalences of Babesia bovis, Babesia bigemina, Theileria parva, and Anaplasma marginale in cattle blood samples sourced from randomly selected farms. R…