Results 21 to 30 of about 14,511 (164)

Commentary on Seersholm Et al.: Yersinia pestis Infection Is Not Synonymous With Deadly Plague in Neolithic Scandinavia. [PDF]

open access: yesAm J Biol Anthropol
ABSTRACT Objectives Emerging genomic evidence has identified ancestral strains of Yersinia pestis in ancient human populations, which has sparked debates about its pathogenic role in later Neolithic societies. Here, we review published evidence linking anthropological and biological data reflecting the past natural history of Y.
Oumarou Hama H   +3 more
europepmc   +2 more sources

Head Lice Infestation in Pre‐High School Girls, Lak Hok Suburban Area, Pathum Thani Province, in Central Thailand

open access: yesJournal of Parasitology Research, Volume 2023, Issue 1, 2023., 2023
This is a cross‐sectional descriptive survey to determine the prevalence of lice infestation in a pre‐high school, Lak Hok subdistrict, Pathum Thani Province, in central part of Thailand. The knowledge, attitudes, and practices of parents/guardians toward head lice in female children during February–April 2020 were evaluated.
Sirima Kitvatanachai   +4 more
wiley   +1 more source

Subversion of the immune response of human pathogenic spirochetes

open access: yesJournal of Clinical Laboratory Analysis, Volume 36, Issue 5, May 2022., 2022
In this review, we aimed to provide a comprehensive overview of immune evasion strategies in spirochetes infection. These strategies can be explained from the following points: (i) Antigenic variation: random, unidirectional, and segmental conversion of the gene to evade immune surveillance; (ii) Overcoming the attack of the complement system ...
Jielite Huang   +3 more
wiley   +1 more source

Testing the Competence of Cimex lectularius Bed Bugs for the Transmission of Borrelia recurrentis, the Agent of Relapsing Fever. [PDF]

open access: yesAm J Trop Med Hyg, 2019
In recent years, bed bugs have reappeared in greater numbers, more frequently, and are biting humans in many new geographic areas. Infestations by these hematophagous insects are rapidly increasing worldwide. Borrelia recurrentis, a spirochete bacterium, is the etiologic agent of louse-borne relapsing fever.
El Hamzaoui B   +4 more
europepmc   +5 more sources

Background to new treatments for COVID‐19, including its chronicity, through altering elements of the cytokine storm

open access: yesReviews in Medical Virology, Volume 31, Issue 5, Page 1-13, September 2021., 2021
Summary Anti‐tumour necrosis factor (TNF) biologicals, Dexamethasone and rIL‐7 are of considerable interest in treating COVID‐19 patients who are in danger of, or have become, seriously ill. Yet reducing sepsis mortality by lowering circulating levels of TNF lost favour when positive endpoints in earlier simplistic models could not be reproduced in ...
Ian A. Clark
wiley   +1 more source

Age‐Based Variations in the Gut Microbiome of the Shennongjia (Hubei) Golden Snub‐Nosed Monkey (Rhinopithecus roxellana hubeiensis)

open access: yesBioMed Research International, Volume 2021, Issue 1, 2021., 2021
The gut microbiota represents a source of genetic and metabolic diversity of a complex polymicrobial ecosystem within its host. To investigate age‐based variations of the gut microbiota among Shennongjia golden snub‐nosed monkeys (Rhinopithecus roxellana hubeiensis), we characterized the microbial species in fecal samples from 18 Shennongjia golden ...
Lijuan Yao   +10 more
wiley   +1 more source

Whole-genome sequences of six <i>Borrelia recurrentis</i> strains obtained via PacBio sequencing. [PDF]

open access: yesMicrobiol Resour Announc
ABSTRACT Provided are whole-genome sequences of six Borrelia recurrentis strains that had been earlier isolated from louse-borne relapsing fever patients. The sequences of each genome presented here included one linear chromosome and 5 linear plasmids, whose average size was
Gaber AM, Blazier JC, Rogovskyy AS.
europepmc   +3 more sources

Borrelia valaisiana resist complement-mediated killing independently of the recruitment of immune regulators and inactivation of complement components [PDF]

open access: yes, 2013
Spirochetes belonging to the Borrelia (B.) burgdorferi sensu lato complex differ in their resistance to complement-mediated killing, particularly in regard to human serum.
Christine Skerka   +24 more
core   +1 more source

Multispacer sequence typing relapsing fever Borreliae in Africa.

open access: yesPLoS Neglected Tropical Diseases, 2012
BackgroundIn Africa, relapsing fevers are neglected arthropod-borne infections caused by closely related Borrelia species. They cause mild to deadly undifferentiated fever particularly severe in pregnant women.
Haitham Elbir   +8 more
doaj   +1 more source

Culture of Ethiopian Strains of Borrelia recurrentis [PDF]

open access: yesApplied Microbiology, 1973
A number of standard bacteriological media with supplements were tested for their ability to support in vitro growth of Ethiopian strains of Borrelia recurrentis . Propagation of 18 out of 21 strains occurred in Trypticase soy yeast broth to which bovine albumin (fraction V),
openaire   +5 more sources

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