Parasit Vectors
October 2023
Background: Anaplasma phagocytophilum is a Gram-negative obligate intracellular bacterium that replicates in neutrophil granulocytes. It is transmitted by ticks of the Ixodes ricinus complex and causes febrile illness called granulocytic anaplasmosis primarily in humans, horses, dogs, sheep, cattle and goats. In comparison, clinically apparent disease has been described rarely in cats especially compared to dogs and horses.
View Article and Find Full Text PDFThe COVID-19 pandemic has made it clear: sharing and exchanging data among research institutions is crucial in order to efficiently respond to global health threats. This can be facilitated by defining health data models based on interoperability standards. In Germany, a national effort is in progress to create common data models using international healthcare IT standards.
View Article and Find Full Text PDFIn Europe, genetically distinct ecotypes of the tick-vectored bacterium Anaplasma phagocytophilum circulate among mammals in three discrete enzootic cycles. To date, potential ecological factors that contributed to the emergence of these divergent ecotypes have been poorly studied. Here, we show that the ecotype that predominantly infects roe deer (Capreolus capreolus) is evolutionarily derived.
View Article and Find Full Text PDFCarbapenem-resistant strains usually emerge by an insertion sequence (IS) jump into the upstream region of the carbapenemase gene. However, intermediate or fully resistant -positive strains also exist. These do not have such IS element activations, but usually have heterogeneous resistance (HR) phenotypes, as detected by a disc diffusion or gradient tests.
View Article and Find Full Text PDFNovel plant-derived antimicrobials are of interest in dentistry, especially in the treatment of periodontitis, since the use of established substances is associated with side effects and concerns of antimicrobial resistance have been raised. Thus, the present study was performed to quantify the antimicrobial efficacy of crude plant extracts against , a pathogen associated with periodontitis. The minimal inhibitory concentrations (MICs) of leaf, leaf, root and root extracts were determined by broth microdilution for ATCC 33277 according to CLSI (Clinical and Laboratory Standards Institute).
View Article and Find Full Text PDFMany of the human infectious pathogens-especially the zoonotic or vector-borne bacteria-are fastidious organisms that are difficult to cultivate because of their strong adaption to the infected host culminating in their near-complete physiological dependence on this environment. These bacterial species exhibit reduced multiplication rates once they are removed from their optimal ecological niche. This fact complicates the laboratory diagnosis of the disease and hinders the detection and further characterization of the underlying organisms, e.
View Article and Find Full Text PDFis a tick-transmitted obligate intracellular Gram-negative bacterium that replicates in neutrophils. It elicits febrile disease in humans and in animals. In a mouse model, elimination of required CD4 T cells, but was independent of IFN-γ and other classical antibacterial effector mechanisms.
View Article and Find Full Text PDFTicks Tick Borne Dis
March 2021
An amendment to this paper has been published and can be accessed via the original article.
View Article and Find Full Text PDFQuantitative PCR (qPCR) assays are the gold standard for diagnosis of pneumonia (PCP). However, they are laborious and require skilled personnel. Therefore, execution outside regular working hours of the molecular biology laboratory is limited.
View Article and Find Full Text PDFBackground: Anaplasma phagocytophilum is a Gram-negative obligate intracellular bacterium that replicates in neutrophil granulocytes. It is transmitted by ticks of the Ixodes ricinus complex and causes febrile illness in humans and animals. The geographical distribution of A.
View Article and Find Full Text PDF(AP) has vast geographical and host ranges and causes disease in humans and domesticated animals. We investigated the role of northward migratory birds in the dispersal of tick-borne AP in the African-Western Palearctic. Ticks were collected from northward migratory birds trapped during spring migration of 2010 at two localities in the central Mediterranean Sea.
View Article and Find Full Text PDFBackground: Anaplasma phagocytophilum is a Gram-negative obligate intracellular bacterium that replicates in neutrophil granulocytes. It is transmitted by ticks of the Ixodes ricinus complex and causes febrile illness in humans and animals. We used multilocus sequence typing (MLST) and ankA gene-based typing to study the molecular epidemiology of the A.
View Article and Find Full Text PDFAnaplasma phagocytophilum is a tick-transmitted bacterium that replicates in neutrophil granulocytes and elicits febrile disease in humans and animals; it is widely distributed in the Americas, Europe, Africa, and Asia. A. phagocytophilum is commonly regarded as a single species, but several genetic variants with distinct host distribution and geographical origin have been described.
View Article and Find Full Text PDFMembers of the genus are fastidious Gram-negative facultative intracellular bacteria that are typically transmitted by arthropod vectors. Several spp. have been found to cause culture-negative endocarditis in humans.
View Article and Find Full Text PDFTicks Tick Borne Dis
October 2019
Anaplasma phagocytophilum is a Gram-negative obligate intracellular bacterium that replicates in neutrophil granulocytes. It is transmitted by ticks and causes tick-borne fever in domestic ruminants such as sheep, cattle and goats. However, in contrast to sheep and cattle little is known about the clinical course of infection in goats.
View Article and Find Full Text PDFTicks Tick Borne Dis
August 2019
Anaplasma phagocytophilum is a tick-transmitted Gram-negative obligate intracellular bacterium that replicates in neutrophil granulocytes. It causes tick-borne fever in cattle and sheep. We report here the case of a 5-year-old cow from Germany with clinically overt granulocytic anaplasmosis presenting with fever, lower limb oedema and drop in milk-yield.
View Article and Find Full Text PDFFollowing publication of the original article [1], we have been notified of a typing error under the "Laboratory test results" section.
View Article and Find Full Text PDFAnn Clin Microbiol Antimicrob
December 2018
Background: Standard dosing of meropenem (2 g t.i.d.
View Article and Find Full Text PDFLeukocytes express formyl-peptide receptors (FPRs), which sense microbe-associated molecular pattern (MAMP) molecules, leading to leukocyte chemotaxis and activation. We recently demonstrated that phenol-soluble modulin (PSM) peptides from highly pathogenic are efficient ligands for the human FPR2. How PSM detection by FPR2 impacts on the course of infections has remained unknown.
View Article and Find Full Text PDFBackground: Anaplasma phagocytophilum is a Gram-negative obligate intracellular bacterium that is transmitted by ticks of the Ixodes ricinus complex. It replicates in neutrophils and elicits febrile disease in humans and animals. Because of its striking tropism for neutrophils, A.
View Article and Find Full Text PDFThe genus Anaplasma (Rickettsiales: Anaplasmataceae) comprises obligate intracellular Gram-negative bacteria that are mainly transmitted by ticks, and currently includes six species: Anaplasma bovis, Anaplasma centrale, Anaplasma marginale, Anaplasma phagocytophilum, Anaplasma platys, and Anaplasma ovis. These have long been known as etiological agents of veterinary diseases that affect domestic and wild animals worldwide. A zoonotic role has been recognized for A.
View Article and Find Full Text PDFArnica montana L. is a medical plant of the Asteraceae family and grows preferably on nutrient poor soils in mountainous environments. Such surroundings are known to make plants dependent on symbiosis with other organisms.
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