Molecular identification of Borrelia spirochetes in questing Ixodes ricinus from northwestern Spain

Ixodes ricinus, the predominant tick species in Europe, can transmit the causative agents of important human diseases such as Lyme borreliosis (LB), caused by Borrelia spirochetes. In ...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Research Source Type: research

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Borrelia burgdorferi (sensu lato) is a complex containing pathogenic bacteria of which some species, such as Borrelia lusitaniae, use birds, small mammals and reptiles as reservoirs. In Italy, the bacteria have b...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Research Source Type: research
In this study, the prevalence of antibodies against two Babesia spp. was investigated in a cohort of patients that were seropositive for Borrelia (B.) burgdorferi sensu lato (s.l.). Data were compared to a control group of healthy individuals. Sera were collected from 283 individuals residing in the southernmost region of Sweden, Skåne County. Almost one third of the sera were from patients with a confirmed seropositive reaction against B. burgdorferi s.l. All sera samples were assessed for IgG antibodies against Babesia (Ba.) microti and Ba. divergens by indirect fluorescent antibody (IFA) assays. Seropositive IgG t...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Abstract The incidence of babesiosis, Lyme disease and other tick-borne diseases has increased steadily in Europe and North America during the last five decades. Babesia microti is transmitted by species of Ixodes, the same ticks that transmit the Lyme disease-causing spirochete, Borrelia burgdorferi. B. microti can also be transmitted through transfusion of blood products and is the most common transfusion-transmitted infection in the U.S.A. Ixodes ticks are commonly infected with both B. microti and B. burgdorferi, and are competent vectors for transmitting them together into hosts. Few studies have examined the...
Source: International Journal for Parasitology - Category: Parasitology Authors: Tags: Int J Parasitol Source Type: research
The impact of a pathogen on the fitness and behaviour of its natural host depends upon the host–parasite relationship in a given set of environmental conditions. Here, we experimentally investigated the effects of Borrelia afzelii, one of the aetiological agents of Lyme disease in humans, on the fitness of its natural rodent host, the bank vole (Myodes glareolus), in semi-natural conditions with two contrasting host population densities. Our results show that B. afzelii can modify the reproductive success and spacing behaviour of its rodent host, whereas host survival was not affected. Infection impaired the breeding...
Source: Proceedings of the Royal Society B: Biological Sciences - Category: Biology Authors: Tags: ecology, evolution, health and disease and epidemiology Source Type: research
Answer:Borreliaspp., relapsing fever group. Molecular studies are needed to definitively identify the causative agent. However, knowing the exposure history of the patient also helps narrow the differential. In this case, we later found out that the patient is from the northwestern part of North America, and therefore this is most likelyBorrelia hermsii,one of the tick-borne relapsing feverBorreliaspecies.The other tick-borneBorreliain North America areB. parkeriiandB. turicatae.These species are transmitted through the bite of a soft-bodied tick in the genusOrnithodoros,and are usually associated with exposure to'rustic's...
Source: Creepy Dreadful Wonderful Parasites - Category: Parasitology Source Type: blogs
Lyme borreliosis caused by spirochetes of the Borrelia burgdorferi (sensu lato) complex is still the most common tick-borne disease in Europe, posing a considerable threat to public health. The predominant vector...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Research Source Type: research
Publication date: Available online 5 May 2018 Source:Veterinary Parasitology Author(s): Susan E. Little, Anne W. Barrett, Yoko Nagamori, Brian H. Herrin, Dorothy Normile, Kathleen Heaney, Rob Armstrong Ticks are an important but under recognized parasitic threat to cats in many areas of the United States. To characterize the species and stages of ticks most commonly recovered from cats and determine the prevalence of disease agents in the ticks, we conducted a survey of ticks removed from cats at veterinary practices in 18 states from April 2016 – June 2017. A total of 796 ticks were submitted from 332 cats from 41 ...
Source: Veterinary Parasitology - Category: Veterinary Research Source Type: research
As forest is the preferred environment for ticks, forestry workers are exposed to tick bites and tick-borne diseases. We assessed the seroprevalence of anti-Borrelia burgdorferi (Bb) antibodies and investigated, ...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Research Source Type: research
This article reviews bacterial, viral, fungal, and parasitic pathogens associated with myelopathy. Infectious myelopathies may be due to direct infection or parainfectious autoimmune-mediated mechanisms; this article focuses primarily on the former. RECENT FINDINGS Some microorganisms exhibit neurotropism for the spinal cord (eg, enteroviruses such as poliovirus and flaviviruses such as West Nile virus), while others are more protean in neurologic manifestations (eg, herpesviruses such as varicella-zoster virus), and others are only rarely reported to cause myelopathy (eg, certain fungal and parasitic infections). Indiv...
Source: CONTINUUM: Lifelong Learning in Neurology - Category: Neurology Tags: Review Articles Source Type: research
We report a typical case of trombiculosis induced by trombiculid larvae of N. autumnalis, which are habitual parasites of various endo- and ectothermic vertebrates. PMID: 29525801 [PubMed - in process]
Source: Infezioni in Medicina - Category: Infectious Diseases Tags: Infez Med Source Type: research
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