Results 51 to 60 of about 6,396 (146)

Rickettsia parkeri Rickettsiosis, Argentina

open access: yesEmerging Infectious Diseases, 2011
Rickettsia parkeri, a recently identified cause of spotted fever rickettsiosis in the United States, has been found in Amblyomma triste ticks in several countries of South America, including Argentina, where it is believed to cause disease in humans.
Yamila Romer   +6 more
doaj   +1 more source

Rickettsia rickettsii infection as an unusual cause of pediatric retinitis: A case report

open access: yesAmerican Journal of Ophthalmology Case Reports, 2022
Purpose: To report a case of infectious pediatric retinitis attributed to Rocky Mountain spotted fever which is rarely reported in the United States.
Spencer M. Moore   +2 more
doaj  

Rocky Mountain spotted fever in Mexican children: Clinical and mortality factors.

open access: yesSalud Pública de México, 2016
Objective. Characterize clinical manifestations and predictors of mortality in children hospitalized for spotted fever. Materials and methods. Cross-sectional study in 210 subjects with a diagnosis of Rocky Mountain spotted fever (RMSF) in a pediatric ...
Gerardo Álvarez-Hernández   +5 more
doaj   +1 more source

Proposed Relationships Between Climate, Biological Soil Crusts, Human Health, and in Arid Ecosystems

open access: yesGeoHealth, Volume 9, Issue 1, January 2025.
Abstract Biological soil crusts (or biocrust) are diminutive soil communities with ecological functions disproportionate to their size. These communities are composed of lichens, bryophytes, cyanobacteria, fungi, liverworts, and other microorganisms.
Marieke L. Ramsey   +3 more
wiley   +1 more source

Rocky Mountain Spotted Fever Mimicking Multisystem Inflammatory Syndrome in Hospitalized Children, Sonora, Mexico

open access: yesEmerging Infectious Diseases
We describe 5 children who had Rocky Mountain spotted fever (RMSF) and manifested clinical symptoms similar to multisystem inflammatory syndrome in Sonora, Mexico, where RMSF is hyperendemic.
Gerardo Álvarez-Hernández   +6 more
doaj   +1 more source

Latitudinal Variation in the Timing of Nest Predator Activity Is Habitat Specific

open access: yesGlobal Ecology and Biogeography, Volume 34, Issue 1, January 2025.
ABSTRACT Aim The goal of this work was to investigate whether the community of avian nest predators shifts from nocturnal to diurnal with changes in latitude. This hypothesis was formulated 70 years ago, under the rationale that longer day length during the bird breeding season at high latitudes increases opportunities for visual predators.
Léna de Framond   +3 more
wiley   +1 more source

Expanding the β‐Lactamase Family in the Human Microbiome

open access: yesAdvanced Science, Volume 11, Issue 46, December 11, 2024.
β‐lactam resistance is mainly driven by β‐lactamases. The study analyzes 1369 characterized and 16 204 putative β‐lactamases, identifying nine from eight clusters. The highest gut β‐lactamase abundance is found in Japan and the lowest in Fiji. β‐lactamase levels correlate with β‐lactam use and income, increasing in colorectal cancer and cardiovascular ...
Baolei Jia   +6 more
wiley   +1 more source

Adherence to and Invasion of Host Cells by Spotted Fever Group Rickettsia Species

open access: yesFrontiers in Cellular and Infection Microbiology, 2010
The pathogenic lifecycle of obligate intracellular bacteria presents a superb opportunity to develop understanding of the interaction between the bacteria and host under the pretext that disruption of these processes will likely lead to death of the ...
Yvonne Gar-Yun Chan   +2 more
doaj   +1 more source

Questions on Mediterranean Spotted Fever a Century after Its Discovery

open access: yesEmerging Infectious Diseases, 2008
Mediterranean spotted fever (MSF) was first described in 1910. Twenty years later, it was recognized as a rickettsial disease transmitted by the brown dog tick.
Clarisse Rovery   +2 more
doaj   +1 more source

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