Results 21 to 30 of about 12,137 (236)

Ehrlichia chaffeensis in Child, Venezuela [PDF]

Emerging Infectious Diseases, 2008
To the Editor: Human monocytic ehrlichiosis is a tick-borne infectious disease caused by Ehrlichia chaffeensis (1). Serologic studies have indicated E. chaffeensis infection in Latin American countries: Venezuela (2), Mexico (3), Argentina (4), Chile (5), and Brazil (6). However, no molecular evidence for E. chaffeensis has been reported.
María C. Martínez, Clara N. Gutiérrez, Franklin Monger, Johanny Ruiz, Akemys Watts, Victor M. Mijares, María G. Rojas, Francisco J. Triana-Alonso   +7 more
doaj   +4 more sources

Genome-Wide Subtraction Analysis and Reverse Vaccinology to Detect Novel Drug Targets and Potential Vaccine Candidates Against Ehrlichia chaffeensis. [PDF]

Appl Biochem Biotechnol, 2023
Human monocytotropic ehrlichiosis is an emerging tick-borne infection caused by the obligate intracellular pathogen, Ehrlichia chaffeensis . The non-specific symptoms can range from a self-limiting fever to a fatal septic-like syndrome and may be ...
Sabzi S, Shahbazi S, Noori Goodarzi N, Haririzadeh Jouriani F, Habibi M, Bolourchi N, Mirzaie A, Badmasti F.   +7 more
europepmc   +2 more sources

Ehrlichia chaffeensis Etf-3 Induces Host RAB15 Upregulation for Bacterial Intracellular Growth. [PDF]

Int J Mol Sci
Ehrlichia chaffeensis infects human monocytes or macrophages and causes human monocytic ehrlichiosis (HME), an emerging life-threatening zoonosis. After internalization, E. chaffeensis resides in membrane-bound inclusions, E.
Yang N, Li M, Qin S, Duan N, Li X, Zhou Y, Wang M, Jin Y, Wu W, Cheng Z.   +9 more
europepmc   +2 more sources

Potential zoonotic role of the tick Amblyomma cf. oblongoguttatum (Ixodida: Ixodidae) in the bacterial transmission of Ehrlichia chaffeensis (Rickettsiales: Anaplasmataceae) in a deciduous tropical forest in Mexico. [PDF]

J Med Entomol
Ehrlichia chaffeensis is a bacterium belonging to the Anaplasmataceae family. In Mexico, only 2 species have been recorded in association with tick species and humans. The objective of the present study was to detect the presence of bacteria of the genus
Guzmán-Cornejo C, Herrera-Mares A, García-Prieto L, Oceguera-Figueroa A, López-Pérez AM, Dzul-Rosado K.   +5 more
europepmc   +2 more sources

Evaluating EcxR for Its Possible Role in Ehrlichia chaffeensis Gene Regulation. [PDF]

Int J Mol Sci, 2022
Ehrlichia chaffeensis, a tick-transmitted intraphagosomal bacterium, is the causative agent of human monocytic ehrlichiosis. The pathogen also infects several other vertebrate hosts. E.
Liu H, Knox CA, Jakkula LUMR, Wang Y, Peddireddi L, Ganta RR.   +5 more
europepmc   +2 more sources

Analysis of Amblyomma americanum microRNAs in response to Ehrlichia chaffeensis infection and their potential role in vectorial capacity. [PDF]

Front Cell Infect Microbiol
Background MicroRNAs (miRNAs) represent a subset of small noncoding RNAs and carry tremendous potential for regulating gene expression at the post-transcriptional level.
Kumar D, Budachetri K, Rikihisa Y, Karim S.   +3 more
europepmc   +2 more sources

Host Cells Upregulate Phosphate Transporter PIT1 to Inhibit Ehrlichia chaffeensis Intracellular Growth. [PDF]

Int J Mol Sci
Ehrlichia chaffeensis infects and proliferates inside monocytes or macrophages and causes human monocytic ehrlichiosis (HME), an emerging life-threatening tick-borne zoonosis. After internalization, E.
Li M, Yang N, Li X, Duan N, Qin S, Wang M, Zhou Y, Jin Y, Wu W, Jin S, Cheng Z.   +10 more
europepmc   +2 more sources

Insights into the mechanism regulating the differential expression of the P28-OMP outer membrane proteins in obligatory intracellular pathogen Ehrlichia chaffeensis. [PDF]

Emerg Microbes Infect, 2021
Ehrlichia chaffeensis causes human monocytic ehrlichiosis (HME), which is one of the most prevalent, life-threatening emerging infectious zoonoses. The life cycle of E. chaffeensis includes ticks and mammals, in which E.
Duan N, Ma X, Cui H, Wang Z, Chai Z, Yan J, Li X, Feng Y, Cao Y, Jin Y, Bai F, Wu W, Rikihisa Y, Cheng Z.   +13 more
europepmc   +2 more sources

Mutations in Ehrlichia chaffeensis Genes ECH_0660 and ECH_0665 Cause Transcriptional Changes in Response to Zinc or Iron Limitation. [PDF]

J Bacteriol, 2021
Ehrlichia chaffeensis, a tick-transmitted bacterium, causes human monocytic ehrlichiosis by replicating within phagosomes of monocytes/macrophages. A function disruption mutation within the pathogen’s gene encoding a phage head-to-tail connector protein ...
Torres-Escobar A, Juárez-Rodríguez MD, Ganta RR.   +2 more
europepmc   +2 more sources

Detection of Rickettsia amblyommatis and Ehrlichia chaffeensis in Amblyomma americanum Inhabiting Two Urban Parks in Oklahoma. [PDF]

Vector Borne Zoonotic Dis, 2021
For the past 30 years, the number of people infected with causative agents of ehrlichiosis, Rocky Mountain spotted fever, and spotted fever group rickettiosis (SFGR) has increased in Oklahoma.
Small M, Brennan RE.
europepmc   +2 more sources