Results 61 to 70 of about 7,443 (219)

Pathologic lesions and IHC demonstration of SFG rickettsiae in brain: Meningitis on day 3 p.i.

, 2019
(A, 100X) and inset (B, 400X). Meningitis with presence of rickettsiae (red) (C, 200X) and inset (D, 1,000X) on day 5 p.i. In heart: Endocarditis and perivascular interstitial inflammation on day 3 p.i. (E, 400X). Endothelial presence of rickettsiae (red)
David H. Walker (175085), Donald H. Bouyer (596109), Andrés F. Londoño (6857828), Nicole L. Mendell (175068)   +3 more
core   +1 more source

Age‐Related and Seasonal Variation in Malaria and Other Causes of Fever and Their Association With Clinical Outcomes in Southern Angola: A Hospital‐Based Study

Tropical Medicine &International Health, EarlyView.
ABSTRACT Background Acute febrile illnesses in sub‐Saharan Africa are often attributed to malaria, yet many patients test negative for malaria parasites. The aetiology of nonmalarial fevers remains understudied. Here, we examine likely causes of febrile illnesses and their association with poor clinical outcomes in Angola.
Helga E. M. Gonçalves, Maria Lina Antunes, Jorge Seixas, Marcelo U. Ferreira   +3 more
wiley   +1 more source

Genotyping of Borrelia, Rickettsia and Anaplasma in Ixodes ricinus and Dermacentor reticulatus ticks in the Kaliningrad region

Журнал микробиологии, эпидемиологии и иммунобиологии
Background. Tick-borne bacterial and protozoal pathogens pose a significant public health problem. The aim of this study was to detect and genotype Borrelia, Rickettsia and Anaplasma in Ixodes ricinus and Dermacentor reticulatus ticks collected in the ...
Mikhail Yu. Kartashov, Evgenii G. Volchev, Ekaterina I. Krivosheina, Kirill A. Svirin, Vladimir A. Ternovoi, Valery B. Loktev   +5 more
doaj   +1 more source

Evidence of Infection in Humans with Rickettsia helvetica in Eastern France

Emerging Infectious Diseases, 2000
A 37-year-old man living in eastern France seroconverted to Rickettsia helvetica in August 1997, 4 weeks after the onset of an unexplained febrile illness.
Pierre-Edouard Fournier, Fabienne Grunnenberger, Benoît Jaulhac, Geneviève Gastinger, Didier Raoult   +4 more
doaj   +1 more source

Eco‐Epidemiological Study of Seropositivity Against Rickettsia and Leptospira Agents in Rural Areas of Urabá, Colombia

Tropical Medicine &International Health, EarlyView.
ABSTRACT Introduction Rickettsioses and leptospirosis are infectious diseases often underdiagnosed due to limited knowledge about their epidemiology, pathophysiology, and clinical aspects. Objectives To characterize the seroprevalence and seroincidence of Rickettsia and Leptospira agents and determine their associated factors in rural areas of Urabá ...
Mariana Torres‐Bustamante, Omar Cantillo‐Barraza, Albert I. Ko, Elsio A. Wunder Jr, Juan C. Quintero‐Vélez   +4 more
wiley   +1 more source

Identification of Lupus Erythematosus Cells and Ragocytes in Peripheral Blood from a Dog with Systemic Lupus Erythematosus

Veterinary Clinical Pathology, EarlyView.
ABSTRACT A 3‐year‐old female‐intact German Shepherd presented for the evaluation of progressive shifting leg lameness, carpal swelling, and weight loss with a poor appetite since adoption about three months prior. Routine blood smear evaluation, lymph node, and synovial fluid cytologies all revealed rare neutrophils with cytoplasmic inclusions ...
Samantha L. Braman, Jeremy P. Bessett, Katie L. Anderson, Kristen R. Friedrichs   +3 more
wiley   +1 more source

Comparison of two hypotheses for the evolution of plasmids in rickettsiae.

, 2013
(A) The appearance of a plasmid system in R. felis (as a member of SFG rickettsiae) as recently suggested (Ogata et al., 2005b; Blanc et al. 2007). (B) Our hypothesis centered on the notion that the ancestor to all rickettsiae harbored a plasmid system ...
M. Sayeedur Rahman (24644), Nicole C. Ammerman (24645), Joseph J. Gillespie (24642), Anjan Purkayastha (3727), Joshua M. Shallom (24646), Bruno S. Sobral (24647), Abdu F. Azad (24648), Magda S. Beier (24643)   +7 more
core   +1 more source

Infection with the Neorickettsial Organism Stellantchasmus falcatus Agent in an Arctic Fox (Vulpes lagopus)

Veterinary Clinical Pathology, EarlyView.
ABSTRACT A 1‐year‐old female‐intact arctic fox (Vulpes lagopus) presented for diarrhea, lethargy, severe thrombocytopenia, and hyperbilirubinemia. Blood film evaluation revealed intracytoplasmic coccoid bacteria within moderate numbers of leukocytes consistent with infection by a rickettsial organism.
Jeremy P. Bessett, Alexis G. Davidson, Alyssa M. Scagnelli, Kristen R. Friedrichs   +3 more
wiley   +1 more source

Infection and Transovarial Transmission of Rickettsiae in Dermacentor variabilis Acquired by Artificial Feeding

, 2001
In this study we examined the efficiency of an in vitro feeding technique using glass microcapillaries as a method of establishing rickettsiae-infected lines of ticks.
Azad, A. F., Ceraul, Shane M., Sonenshine, Daniel E., Macaluso, K. R.   +3 more
core   +1 more source

A One Health Perspective on the Resurgence of Flea-Borne Typhus in Texas in the 21st Century: Part 1: The Bacteria, the Cat Flea, Urbanization, and Climate Change

Pathogens
Flea-borne typhus (FBT), due to Rickettsia typhi and R. felis, is an infection typically causing fever, headache, rash, hepatitis, and thrombocytopenia.
Gregory M. Anstead
doaj   +1 more source