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, 2022 Ehrlichia chaffeensis, a small Gram-negative obligatory intracellular bacterium, infects human monocytes or macrophages, and causes human monocytic ehrlichiosis, one of the most prevalent, life-threatening emerging zoonoses.
Qi’an Liang (12319844) +11 more
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Estrategia de Ehrlichia Chaffeensis para Evitar el Mecanismo de Defensa Celular en Ehrlichiosis Monocítica Humana [PDF]
, 2023 Introduction. There are different vectors in the transmission of diseases in animals and humans; After mosquitoes, ticks are the second vector, which are of concern for public health, due to their morbidity and mortality in humans around the world.
Delgado Arellano , Nayelli +1 more
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Revista Brasileira de Parasitologia Veterinária, 2012 Ehrlichiosis is a tick-borne disease that affects both humans and animals. The few existing reports on ehrlichiosis in Brazilian cats have been based on observation of morulae in leukocytes and, more recently, on molecular detection of Ehrlichia sp.
Maria do Socorro Costa de Oliveira Braga +4 more
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Medical and Veterinary Entomology, Volume 40, Issue 3, Page 582-594, September 2026.Amblyomma sculptum showed a plasmatocyte‐dominant haemocyte profile. Beauveria bassiana increased plasmatocytes and reduced granulocytes, whereas Metarhizium robertsii did not cause significant changes. Amblyomma americanum showed a granulocyte‐dominant haemocyte profile. Beauveria bassiana reduced total haemocytes and granulocytes. B.
Cárita de Souza Ribeiro‐Silva +7 more
wiley +1 more source
Lack of Seroreactivity to Ehrlichia chaffeensis Among Rodent Populations [PDF]
Journal of Wildlife Diseases, 1998 A retrospective serosurvey for antibodies to Ehrlichia chaffeensis was conducted on eight species of wild rodents (Mus musculus, Oryzomys palustris, Peromyscus leucopus, Rattus norvegicus, Reithrodontomys humulis, Sciurus carolinensis, Sciurus niger, and Sigmodon hispidus) from the southeastern United States.
J M, Lockhart +3 more
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Serological Responses to Ehrlichia equi, Ehrlichia chaffeensis, and Borrelia burgdorferi in Patients from New York State [PDF]
, 2020 Serological testing at the New York State Department of Health for human granulocytic ehrlichiosis in the residents of Westchester County, N.Y., was performed with specimens from 176 patients by the indirect fluorescent-antibody (IFA) technique with ...
core
Prevalence of Ehrlichia chaffeensis and Ehrlichia ewingii in Amblyomma americanum and Dermacentor variabilis Collected From Southeastern Virginia, 2010-2011 [PDF]
, 2014 Amblyomma americanum is the most commonly-encountered tick species in southeastern Virginia, representing approximately 95% of the human-biting tick population in this area.
Wright, Chelsea L. +2 more
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mBio, 2017 The obligatory intracellular pathogen Ehrlichia chaffeensis lacks most genes that confer resistance to oxidative stress but can block reactive oxygen species (ROS) generation by host monocytes-macrophages.
Omid Teymournejad +2 more
doaj +1 more source
Public Health Challenges, Volume 5, Issue 2, June 2026.ABSTRACT Bacteria of the order Rickettsiales comprise a diverse group of obligate intracellular microorganisms that are globally distributed and highly prevalent in tropical and subtropical regions. In South America, these bacteria have been associated with arthropod vectors, such as ticks, fleas, mites, lice, and certain dipterans, as well as with a ...
Cristian J. Zamorano‐Gómez +3 more
wiley +1 more source
Glycosylation of Homologous Immunodominant Proteins of Ehrlichia chaffeensis and Ehrlichia canis [PDF]
Infection and Immunity, 2000 ABSTRACT The glycoprotein genes of Ehrlichia chaffeensis (1,644 bp) and Ehrlichia canis (2,064 bp) encode proteins of 548 to 688 amino acids with predicted molecular masses of only 61 and 73 kDa but with electrophoretic mobilities of 120 kDa (P120) and 140 kDa (P140), respectively ...
J W, McBride, X J, Yu, D H, Walker
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