Results 41 to 50 of about 3,884 (159)

Metabolism of Rickettsia typhi and Rickettsia akari in Irradiated L Cells [PDF]

Infection and Immunity, 1972
L cells that had been exposed to 3,000 r of 60 Co the previous day were used to study the growth and metabolism of Rickettsia typhi and R. akari. Viable (unirradiated) L cells were used to study the effect of rickettsial infection on host-cell metabolism.
E, Weiss, L W, Newman, R, Grays, A E, Green   +3 more
openaire   +2 more sources

Rickettsia typhi in Southern California: A Growing Flea-Borne Threat. [PDF]

Am J Trop Med Hyg
Blanton LS.
europepmc   +3 more sources

Detekcija IgG protutijela na Rickettsia typhi

Infektološki glasnik, 2020
Background. Rickettsia typhi belongs to the typhus group of rickettsiae and causes endemic typhus. Cases of endemic typhus and seropositivity to R. typhi have been reported in the neighbouring China and Russia. However, little is known of the endemic typhus in Kazakhstan.
Perfilyeva, Yuliya V., Nizkorodova, Anna S., Berdygulova, Zhanna A., Ostapchuk, Yekaterina O., Naizabayeva, Dinara A., Neupokoyeva, Alena S., Kuznetsova, Tatyana V., Shishkina, Tatyana S., Abuova, Gulzhan N., Yegemberdiyeva, Ravilya A., Bissenbay, Akerke O., Maltseva, Elina R., Mamadaliyev, Seidigapbar M., Dmitrovsky, Andrey M.   +13 more
openaire   +3 more sources

Structural features of lipid A of Rickettsia typhi

Acta Virologica, 2011
Lipid A isolated from the Rickettsia typhi lipopolysaccharide (LPS) was investigated for its composition and structure using chemical analyses, gas chromatography-mass spectrometry (GC-MS), and electrospray ionization (ESI) combined with the tandem mass spectrometry (MS/MS).
M, Fodorová, P, Vadovič, R, Toman
openaire   +2 more sources

Bayesian population‐based assessment of ascertainment bias in flea‐borne typhus surveillance in California, 2011–2019

Medical and Veterinary Entomology, Volume 39, Issue 4, Page 765-775, December 2025.
Although flea‐borne typhus is historically associated with poorer living conditions, FBT surveillance reporting is associated with greater socioeconomic advantage at the population level. FBT surveillance may be biased towards socioeconomic advantage in its ascertainment of surveillance data.
Kyle Yomogida, Anne Kjemtrup, Mireille Ibrahim, Zuelma Contreras, Van Ngo, Umme‐Aiman Halai, Sharon Balter, Matt Feaster, Matthew Zahn, Eric Shearer, Rochelle Sorvillo, Nora Balanji, Cindy Torres, Belinda Prado, Charsey Porse, Vicki Kramer, Beatriz Martínez‐López   +16 more
wiley   +1 more source

Arthropod ectoparasites of synanthropic rodents in northern‐central Italy

Medical and Veterinary Entomology, Volume 39, Issue 4, Page 787-793, December 2025.
The presence of ectoparasites in synanthropic rodents in various Italian provinces was investigated. Eighty‐one Rattus norvegicus, 49 Rattus rattus and 10 Mus musculus were examined Polyplax spinulosa lice, Myobiidae mites, Laelaps echidninus and Notoedres muris were mainly recovered.
Filippo Maria Dini, Silvia Crucitti, Talita Bordoni, Roberta Galuppi   +3 more
wiley   +1 more source

Enzymatic activities of cell-free extracts of Rickettsia typhi [PDF]

Infection and Immunity, 1976
Cell-free extracts of Rickettsia typhi were tested for activities of enzymes of the tricarboxylic acid cycle, of glutamate catabolism, and of glycolysis. The organisms were grown in the yolk sacs of chicken embryos, harvested shortly before the time of embryo death, purified by Renografin density gradient centrifugation, and ruptured in a French ...
J C, Coolbaugh, J J, Progar, E, Weiss
openaire   +2 more sources

Mucosal‐Associated Invariant T Cells: Origins, Biological Functions, Diseases, and Therapeutic Targets

MedComm, Volume 6, Issue 11, November 2025.
Mucosa‐associated invariant T (MAIT) cells are an evolutionarily conserved class of innate‐like T lymphocytes that rely on MR1 molecules to recognize microbial metabolites and play a central role in immune surveillance and inflammatory regulation.
Cheng Zhu, Qian Huai, Yishan Du, Xingyu Li, Fumin Zhang, Yongkang Zhang, Mengwei Wu, Ying Dai, Xiaolei Li, Hanren Dai, Hua Wang   +10 more
wiley   +1 more source

The First Report on Cat Flea (Ctenocephalides felis), a Zoonotic Haematophagous Insect Infestation in Humans in Bangladesh: A Case Report and Literature Review

Veterinary Medicine and Science, Volume 11, Issue 6, November 2025.
An 18‐year‐old girl who didn't have any pets but was infested with fleas from a pet‐owning neighbour. Flea‐bite dermatitis caused severe pruritus, urticarial and papulomatous lesions on the neck and arm. Fleas were removed and identified as Ctenocephalides felis, the cat flea.
Nusrat Nowrin Shohana, Md. Shahadat Hossain, Sharmin Shahid Labony, Md. Haydar Ali, Md. Abdul Alim, Ashim Kumar Nandi, Anisuzzaman   +6 more
wiley   +1 more source

Detección molecular de Rickettsia typhi en perros de una comunidad rural de Yucatán, México

Biomédica: revista del Instituto Nacional de Salud, 2016
Introducción. Rickettsia typhi es la bacteria causante del tifus múrido o endémico, el cual es transmitido al ser humano principalmente por medio de las heces infectadas de pulgas y en cuyo ciclo de infección se encuentran involucrados distintos animales
Daly Martínez-Ortiz, Marco Torres-Castro, Edgar Koyoc-Cardeña, Karina López, Alonso Panti-May, Iván Rodríguez-Vivas, Adriano Puc, Karla Dzul, Jorge Zavala-Castro, Anuar Medina-Barreiro, Juan Chablé-Santos, Pablo Manrique-Saide   +11 more
doaj   +1 more source