Prevalence of protozoan parasites in small and medium mammals in Texas, USA

This study aimed to characterize the molecular prevalence of Babesia species within small and medium sized mammals at two sites in East Texas with an emphasis on detection of pathogen presence in these two contrasting wild mammal groups at these sites. To that end, a total of 480 wild mammals representing eight genera were trapped, sampled, and screened for Babesia species using the TickPath layerplex qPCR assay. Two sites were selected for animal collection, including The Big Thicket National Preserve and Gus Engeling Wildlife Management Area. Molecular analysis revealed the prevalence of various Babesia species at 9.43% and 0.0% within medium and small sized mammals, respectively. Continued molecular prevalence surveys of tick-borne pathogens in Texas wild mammals will be needed to provide novel information as to which species of Babesia are most prevalent and identify specific wildlife species as pathogen reservoirs.Graphical abstract
Source: International Journal for Parasitology: Parasites and Wildlife - Category: Parasitology Source Type: research

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The objective of this study was to investigate bacterial and protozoan pathogens in ticks infecting wild grasscutters. A total of 81 ticks were collected from three hunted grasscutters purchased from Katamanto, the central bushmeat market in Accra. Ticks were identified as Ixodes aulacodi and Rhipicephalus sp. based on morphological keys, which were further confirmed by sequencing mitochondrial 16S ribosomal DNA (rDNA) and cytochrome oxidase I (COI) genes of specimens. Protozoan infections were tested by PCR amplifying 18S rDNA of Babesia/Theileria/Hepatozoon, while bacterial infections were evaluated by PCRs or real-time ...
Source: Acta Tropica - Category: Infectious Diseases Authors: Tags: Acta Trop Source Type: research
Publication date: Available online 18 January 2020Source: International Journal for Parasitology: Parasites and WildlifeAuthor(s): Serene Yu, Joseph Modarelli, John M. Tomeček, Justin T. French, Clayton Hilton, Maria D. Esteve-GasentAbstractDetermining which wildlife hosts are involved in the enzootic cycles of tick-borne diseases (TBD) enables enhanced surveillance and risk assessment of potential transmission to humans and domestic species. Currently, there is limited data to indicate which tick-borne pathogens (TBP) can infect coyotes. Additionally, limited surveillance data for white-tailed deer (WTD) in south Texas i...
Source: International Journal for Parasitology: Parasites and Wildlife - Category: Parasitology Source Type: research
Babesia microti, a tick-borne intraerythrocytic zoonotic protozoan, causes most of human babesiosis in the world, and patients usually experience intermittent fever, fatigue, and chills, followed by a combination of additional symptoms and even death in severe cases. Unfortunately, there is no curable drug or effective vaccine available, and the mechanism of related virulence factors in invasion to host cells during the merozoite stage is unclear. Here, we evaluated a secreted protein annotated as B. microti surface antigen 1 (BmSA1) and identified from in vitro culture supernatant by liquid chromatography coupled with tan...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Publication date: Available online 15 August 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Jiří Černý, Buyantogtokh Buyannemekh, Tersia Needham, Gantulga Gankhuyag, Dashzeveg OyuntsetsegAbstractTicks and tick-borne pathogens (TBPs) pose a considerable threat to human and animal health in Mongolia; a large and sparsely inhabited country whose economy is largely dependent on animal production. Intensive contact between herdsmen and their livestock, together with the use of pastures without fencing, allows contact between wildlife, domestic animals and humans, thus creating ideal conditions for epizoonos...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
In conclusion, TrxR dysfunction in B. microti results in the breakdown of redox homeostasis and promotes apoptosis.
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
This study represents the first description of B. venatorum and B. bigemina in roe deer from Spain.Graphical abstract
Source: International Journal for Parasitology: Parasites and Wildlife - Category: Parasitology Source Type: research
Abstract Tick-borne haematozoans cause severe diseases in domestic animals, and some of them have zoonotic potential. The results of previous studies in Europe point to the important role of foxes in natural endemic cycles of several tick-borne pathogens, including protozoa. The aim of the present research was to acquire information on the prevalence and distribution of tick-borne protozoan parasites among foxes in Serbia. Legally hunted foxes from 14 localities throughout Serbia were analysed. Spleen samples were collected from 129 animals and tested for the presence of Babesia spp. and Hepatozoon spp. by PCR. In...
Source: Acta Veterinaria Hungarica - Category: Veterinary Research Authors: Tags: Acta Vet Hung Source Type: research
Abstract The global impact of bovine babesiosis caused by the tick-borne apicomplexan parasites Babesia bovis, Babesia bigemina and Babesia divergens is vastly underappreciated. These parasites invade and multiply asexually in bovine red blood cells (RBCs), undergo sexual reproduction in their tick vectors (Rhipicephalus spp. for B. bovis and B. bigemina, and Ixodes ricinus for B. divergens) and have a trans-ovarial mode of transmission. Babesia parasites can cause acute and persistent infections to adult naïve cattle that can occur without evident clinical signs, but infections caused by B. bovis are associa...
Source: International Journal for Parasitology - Category: Parasitology Authors: Tags: Int J Parasitol Source Type: research
This study provides basic knowledge that is necessary to initiate Kyasanur Forest Disease (KFD) prevention programs in these areas. Ticks were sampled from Wayanad districts of Kerala from domestic animals and identified morphologically. A total of 195 cattle searched, in which 168 (86.15%) cattle were infested with ticks and a total of 3633 ticks comprising three genera and seven species were collected,Rhipicephalus microplus (52.71%) was prevalent species followed byHaemaphysalis bispinosa (16.9%),Rhipicephalus decoloratus (15.77%),Haemaphysalis turturis (11.42%),Rhipicephalus sanguineus (1.32%),Amblyomma integrum (1.15%...
Source: Journal of Parasitic Diseases - Category: Parasitology Source Type: research
This study is the first report on prevalence and molecular characterization of A. phagocytophilum strains and Babesia species in roe deer and red deer in Norway. The high infection and coinfection rates with A. phagocytophilum and Babesia spp. in red deer and roe deer suggest that these cervids may play important role in the transmission of single and multiple infections. Climate change can potentially increase the density and distribution of vector and thus enhance the risk of tick-borne infections in Norway.Graphical abstract
Source: International Journal for Parasitology: Parasites and Wildlife - Category: Parasitology Source Type: research
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