Results 31 to 40 of about 2,055 (129)

Rickettsia felis infection in cat fleas Ctenocephalides felis felis [PDF]

open access: yes, 2010
The present study evaluated the rickettsial infection in a laboratory colony of cat fleas, Ctenocephalides felis felis (Bouche) in Brazil. All flea samples (30 eggs, 30 larvae, 30 cocoons, 30 males, and 30 females) tested by polymerase chain reaction ...
CORREIA, Thaís R.   +5 more
core   +2 more sources

Soroprevalência de Rickettsia bellii e Rickettsia felis em cães, São José dos Pinhais, Paraná, Brasil [PDF]

open access: yes, 2010
Brazilian spotted fever (BSF) is a vector-borne zoonosis caused by Rickettsia rickettsii bacteria. Dogs can be host sentinels for this bacterium. The aim of the study was to determine the presence of antibodies against Rickettsia spp.
BIONDO, Alexander Welker   +7 more
core   +2 more sources

Epidemiology of Plague: Problems with the Use of Mathematical Epidemiological Models in Plague Research and the Question of Transmission by Human Fleas and Lice

open access: yesCanadian Journal of Infectious Diseases and Medical Microbiology, Volume 2019, Issue 1, 2019., 2019
This article addresses the recent use of mathematical epidemiological SIR or SEIR models in plague research. This use of S(E)IR models is highly problematic, but the problems are not presented and considered. Serious problems show in that such models are used to “prove” that historical plague was a (1) Filoviridae disease and (2) a bacterial disease ...
Ole J. Benedictow, Louis DeTolla
wiley   +1 more source

Inactivation of SAM-methyltransferase is the mechanism of attenuation of a historic louse borne typhus vaccine strain [PDF]

open access: yes, 2014
Louse borne typhus (also called epidemic typhus) was one of man's major scourges, and epidemics of the disease can be reignited when social, economic, or political systems are disrupted.
AV Rodionov   +17 more
core   +3 more sources

Spotted fever group rickettsiae associated with ixodid ticks in wild environment in Southern Italy

open access: yesMicrobiologyOpen, Volume 7, Issue 1, February 2018., 2018
Tick‐borne rickettsioses are an important public health problem; however, their diagnosis remains challenging. Spotted fever group rickettsiae were investigated in hard ticks using two different molecular approaches. A total of four zoonotic rickettsiae were detected. Abstract Ixodidae ticks are vectors and reservoirs of several species of rickettsiae,
Donato Antonio Raele   +4 more
wiley   +1 more source

Epidemiologic profile and clinical course of four confirmed rickettsiosis cases in Southern Mexico during 2016

open access: yesClinical Case Reports, Volume 6, Issue 1, Page 119-124, January 2018., 2018
Domestic animals can carry ticks or fleas, which constitute common vectors of rickettsial infections. The contact with them should be considered as suggestive of rickettsial infections in symptomatic patients. Misdiagnosis might occur in regions where other vector‐borne diseases are endemic.
Karla R. Dzul‐Rosado   +4 more
wiley   +1 more source

Ecosystem services provided by spiders

open access: yesBiological Reviews, Volume 100, Issue 6, Page 2217-2236, December 2025.
ABSTRACT Spiders, ubiquitous and abundant predators in terrestrial ecosystems, often are the subjects of an unjust negative perception. However, these remarkable creatures stand as unsung heroes within our ecosystems, contributing a multitude of ecosystem services critical to human well‐being.
Pedro Cardoso   +13 more
wiley   +1 more source

Tick‐, mosquito‐, and rodent‐borne parasite sampling designs for the National Ecological Observatory Network

open access: yesEcosphere, Volume 7, Issue 5, May 2016., 2016
Abstract Parasites and pathogens are increasingly recognized as significant drivers of ecological and evolutionary change in natural ecosystems. Concurrently, transmission of infectious agents among human, livestock, and wildlife populations represents a growing threat to veterinary and human health.
Yuri P. Springer   +48 more
wiley   +1 more source

Identificação sorológica de Rickettsia spp do grupo da febre maculosa em capivaras na região de Campinas, SP, Brasil [PDF]

open access: yes, 2008
Diseases transmitted by ticks have been an important health problem all over the world. Brazilian Spotted Fever (BSF) stands for a serious epidemiological concern due to the high mortality rates pointed out.
CALIC, Simone Berger   +8 more
core   +2 more sources

Murine Typhus: An Important Consideration for the Nonspecific Febrile Illness

open access: yesCase Reports in Medicine, Volume 2012, Issue 1, 2012., 2012
Murine typhus is a widely distributed flea‐borne infection caused by Rickettsia typhi. Symptoms of murine typhus are nonspecific and mimic a variety of other infectious diseases. We herein report a case of murine typhus in an area where the broad use of DDT in the mid‐20th century has now made it a rare disease.
Gurjot Basra   +3 more
wiley   +1 more source

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