Tick Bite–Associated Morphea: A Case Report

Abstract: Borrelia burgdorferi, the causative organism of Lyme disease, has been linked to the development of scleroatrophic skin conditions including morphea, although this association remains controversial. The possibility that tick bite with or without concurrent Borrelia infection instigates that morphea development is important to recognize because this could prompt further workup for Lyme disease, or other tick-borne illness, which, when untreated, can have devastating consequences. Here, we report a case of a woman with a history of previous tick bite in the location of morphea. This prompted further workup, including serologies that were negative for borrelia. The patient declined empiric treatment with doxycycline. It is important to be aware that morphea may represent a consequence of tick bite because this can alter patient management.
Source: The American Journal of Dermatopathology - Category: Pathology Tags: Controversies in Dermatopathology Source Type: research

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This study documents a high prevalence in ticks of Rickettsia spp. thought to be endosymbionts, a low prevalence of relapsing fever group Borrelia in ticks, and a lack of detection of Lyme disease-group Borrelia in both ticks and mammals in an east Texas forested recreation area. Additionally, we observed low questing tick density in areas with a history of controlled burns. These results expand knowledge of tick-borne disease ecology in east Texas which can aid in directing future investigative, modeling, and management efforts.
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Publication date: Available online 16 October 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Nicole E. Breuner, Shelby L. Ford, Andrias Hojgaard, Lynn M. Osikowicz, Christina M. Parise, Maria F. Rosales Rizzo, Ying Bai, Michael L. Levin, Rebecca J. Eisen, Lars EisenAbstractThe invasive, human-biting Asian longhorned tick, Haemaphysalis longicornis, was detected in New Jersey in the eastern United States in August of 2017 and by November of 2018 this tick had been recorded from 45 counties across 9 states, primarily along the Eastern Seaboard. The establishment of H. longicornis in the United States has raised the ques...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
H, Heylen D Abstract Wild birds are frequently exposed to the zoonotic tick-borne bacteria Borrelia burgdorferi sensu lato (s.l.), and some bird species act as reservoirs for some Borrelia genospecies. Studying the tropism of Borrelia in the host, how it is sequestered in different organs, and whether it is maintained in circulation and/or in the host's skin is important to understand pathogenicity, infectivity to vector ticks and reservoir competency.We evaluated tissue dissemination of Borrelia in blackbirds (Turdus merula) and great tits (Parus major), naturally and experimentally infected with Borrelia genospe...
Source: Microbial Ecology - Category: Microbiology Authors: Tags: Microb Ecol Source Type: research
Discussion Lyme disease (LD) is caused by several genospecies of Borrelia burgdorferi senu lato that are transmitted by ticks of the Ixodes ricinus complex. In the U.S. and Europe it is the most common vector-borne disease. It is named for Lyme, Connecticut in the 1970s when it was “discovered,” but there are reports of LD-type disease in Europe since 1883. There are 18 distinct genospecies with B. afzelii, B. garinii and B. burgdorferi sensu stricto being the 3 most common ones causing human infection. There are many species of Ixodes ticks but only 4 commonly bite humans. Ixodes ricinus mainly in Europe, I, p...
Source: PediatricEducation.org - Category: Pediatrics Authors: Tags: Uncategorized Source Type: news
Borrelia burgdorferi and Anaplasma phagocytophilum are tick-borne infections transmitted by Ixodes scapularis in the eastern USA; both agents cause disease in dogs and people. To characterize changes in seropreva...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Research Source Type: research
In 1975, researchers from Yale investigated an epidemic of 51 patients with arthritis who lived near the woodsy town of Lyme, Connecticut. The most common symptom was recurrent attacks of knee swelling. A few had pain in other joints, such as the wrist or ankle. Many had fever, fatigue, and headache. Some remembered a round skin rash before the onset of knee swelling. We now know that Lyme disease is an infection acquired from tick bites, caused by a spiral bacterium named Borrelia burgdorferi. After a tick bite, Borrelia bacteria wriggle through the skin away from the bite site. This leads to a circular red rash, known as...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Arthritis Bones and joints Infectious diseases Source Type: blogs
der F Abstract Introduction: Despite advancements in diagnostic capabilities and the availability of effective antimicrobial agents, community-acquired infections of the central nervous system (CNS) are still associated with high mortality rates. Aim: To assess the epidemiological and clinical characteristics of community-acquired CNS infections treated in the West Pannonian region between 2010 and 2016. Method: Clinical data of 176 patients were retrospectively analysed in two age cohorts: 15 to 65 and more than 65 years of age. Results: Neuroinfections were found to be bacterial in 81, viral in 91, parasitic in ...
Source: Orvosi Hetilap - Category: General Medicine Authors: Tags: Orv Hetil Source Type: research
Publication date: Available online 23 September 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Goudarz Molaei, Eliza AH Little, Kirby C. Stafford, Holly GaffAbstractCases of morphological anomalies in the blacklegged tick, Ixodes scapularis (Acari: Ixodidae), have recently been reported from the Northeastern and upper Midwestern United States, potentially complicating identification of this important vector of human disease-causing pathogens. We hereby report a case of a morphological anomaly in I. scapularis, biting a human host residing in Norwich, Connecticut. Using a dichotomous morphological key, high-resolution ...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
In this study, we used PCR-based methods to provide the first evidence of Borrelia burgdorferi sensu lato (s.l.) infections in the three bat-associated tick species collected from ten bat species sampled in Poland and Romania. B. burgdorferi s.l. was detected in 24% (64/266) of tick samples, and 40.3% (60/149) of the bats carried infected chiropterophilic ticks.In Poland, the B. burgdorferi s.l. infection prevelance of I. ariadnae ticks parasitizing Myotis species was four times higher compared to the I. vespertilionis ticks derived from Rhinolophus hipposideros bats (44.4% vs.10%, respectively). The observed differences i...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
uw MJ Abstract Multiple-strain microbial pathogens often induce strain-specific antibody responses in their vertebrate hosts. Mothers can transmit antibodies to their offspring, which can provide short-term, strain-specific protection against infection. Few experimental studies have investigated this phenomenon for multiple-strain zoonotic pathogens occurring in wildlife reservoir hosts. The tick-borne bacterium Borrelia afzelii causes Lyme disease in Europe and consists of multiple strains that cycle between the tick vector (Ixodes ricinus) and vertebrate hosts such as the bank vole (Myodes glareolus). We used a ...
Source: Applied and Environmental Microbiology - Category: Microbiology Authors: Tags: Appl Environ Microbiol Source Type: research
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