Results 21 to 30 of about 5,954 (213)

Analysis of the peptidoglycan of Rickettsia prowazekii [PDF]

Journal of Bacteriology, 1994
In the present study, peptidoglycan from Rickettsia prowazekii, an obligate intracellular bacterium, was purified. The rickettsial peptidoglycan is like that of gram-negative bacteria; that is, it is sodium dodecyl sulfate insoluble, lysozyme sensitive, and composed of glutamic acid, alanine, and diaminopimelic acid in a molar ratio of 1.0:2.3:1.0. The
H, Pang, H H, Winkler
openaire   +2 more sources

Orientia tsutsugamushi: A life between escapes

MicrobiologyOpen, Volume 12, Issue 5, October 2023., 2023
The life cycle of the mite‐borne, obligate intracellular pathogen Orientia tsutsugamushi (Ot), the causative agent of human scrub typhus, differs in many aspects from that of other members of the Rickettsiales order. Particularly, the nonlytic cellular exit of individual Ot bacteria at the plasma membrane closely resembles the budding of enveloped ...
Lea Fromm, Jonas Mehl, Christian Keller
wiley   +1 more source

Rickettsiosis Infections in Sarawak: Epidemiological Insights and Public Health Strategies. [PDF]

Can J Infect Dis Med Microbiol
Rickettsiosis infections pose a significant public health concern in Sarawak, Malaysia. Despite their importance, these infections remain poorly recognised, under‐researched and inadequately documented within the context of the Sarawak region. This comprehensive evaluation seeks to address this knowledge gap by providing an in‐depth analysis of ...
Abang RAA, Adrus M.
europepmc   +2 more sources

Identifying Novel Inhibitors of RpFabG in Typhus-inducing Rickettsia prowazekii [PDF]

, 2019
Epidemic typhus is a rickettsial disease that is contracted via ticks and lice found on the flying squirrel. The disease is caused by Rickettsia prowazekii, an intracellular, gram-negative coccobacillus.
Panatpur, Aparna
core   +1 more source

Phylogenic position and low genomic diversity of “Candidatus Rickettsia kotlanii” inferred by complete genome sequences of two Japanese isolates

Microbiology and Immunology, Volume 67, Issue 6, Page 275-280, June 2023., 2023
Abstract Many Rickettsia species of the spotted fever group (SFG) cause tick‐borne diseases known as “spotted fever.” One of the candidate SFG Rickettsia species is “Candidatus Rickettsia kotlanii,” which was first detected in Haemaphysalis concinna in Hungary in 2006.
Yasuhiro Gotoh, Ai Takano, Masako Andoh, Kentaro Kasama, Keiji Nakamura, Shuji Ando, Tetsuya Hayashi   +6 more
wiley   +1 more source

Phylogenies of atpD and recA support the small subunit rRNA-based classification of rhizobia [PDF]

, 2001
The current classification of the rhizobia (root-nodule symbionts) assigns them to six genera. It is strongly influenced by the small subunit (16S, SSU) rRNA molecular phylogeny, but such single-gene phylogenies may not reflect the evolution of the ...
Gaunt, M.W., Lloyd-Macgilp, S.A., Rigottier-Gois, L., Turner, S.L., Young, J.P.W.   +4 more
core   +1 more source

Head Lice Infestation in Pre‐High School Girls, Lak Hok Suburban Area, Pathum Thani Province, in Central Thailand

Journal of Parasitology Research, Volume 2023, Issue 1, 2023., 2023
This is a cross‐sectional descriptive survey to determine the prevalence of lice infestation in a pre‐high school, Lak Hok subdistrict, Pathum Thani Province, in central part of Thailand. The knowledge, attitudes, and practices of parents/guardians toward head lice in female children during February–April 2020 were evaluated.
Sirima Kitvatanachai, Kanyanan Kritsiriwutthinan, Aree Taylor, Pochong Rhongbutsri, José F. Silveira   +4 more
wiley   +1 more source

CONTRIBUTIONS TO RICKETTSIOSES RESEARCH IN COLOMBIA (1917-1943), LUIS B. PATIÑO CAMARGO

Revista do Instituto de Medicina Tropical de São Paulo, 2016
Colombian physician Luis Benigno Patiño Camargo was one of the pioneers in the study of rickettsioses in South America, demonstrating for the first time in Colombia the presence of Rickettsia rickettsii as the etiological agent of a highly deadly ...
Álvaro A. FACCINI-MARTÍNEZ, Carlos A. BOTERO-GARCÍA, Marylin HIDALGO   +2 more
doaj   +3 more sources

Jail Fever (Epidemic Typhus) Outbreak in Burundi

Emerging Infectious Diseases, 1997
We recently investigated a suspected outbreak of epidemic typhus in a jail in Burundi. We tested sera of nine patients by microimmunofluorescence for antibodies to Rickettsia prowazekii and Rickettsia typhi. We also amplified and sequenced from lice gene
D. Raoult, V. Roux, J.B. Ndihokubwayo, G. Bise, D. Baudon, G. Martet, R. Birtles   +6 more
doaj   +1 more source

Transformation of Rickettsia prowazekii to Rifampin Resistance [PDF]

Journal of Bacteriology, 1998
ABSTRACT Rickettsia prowazekii , the causative agent of epidemic typhus, is an obligate intracellular parasitic bacterium that grows directly within the cytoplasm of the eucaryotic host cell. The absence of techniques for genetic manipulation hampers the study of this organism’s unique biology and pathogenic ...
L I, Rachek, A M, Tucker, H H, Winkler, D O, Wood   +3 more
openaire   +3 more sources