Results 41 to 50 of about 3,523 (182)

Cluster of Sylvatic Epidemic Typhus Cases Associated with Flying Squirrels, 2004–2006

Emerging Infectious Diseases, 2009
In February 2006, a diagnosis of sylvatic epidemic typhus in a counselor at a wilderness camp in Pennsylvania prompted a retrospective investigation. From January 2004 through January 2006, 3 more cases were identified.
Alice S. Chapman, David L. Swerdlow, Virginia M. Dato, Alicia D. Anderson, Claire E. Moodie, Chandra Marriott, Brian Amman, Morgan J. Hennessey, Perry Fox, Douglas B. Green, Eric Pegg, William L. Nicholson, Marina E. Eremeeva, Gregory A. Dasch   +13 more
doaj   +1 more source

Head lice as vectors of pathogenic microorganisms

Tropical Medicine and Health, 2023
Body lice and head lice are the most common ectoparasites of humans. Head lice (Pediculus humanus capitis) occur worldwide in children and their caretakers, irrespective of their social status.
Hermann Feldmeier
doaj   +1 more source

Distribution of different Rickettsia species in countries of the WHO Eastern Mediterranean (WHO-EMRO) region: An overview

Travel Medicine and Infectious Disease
Subject: Rickettsia is a zoonotic bacterial pathogen transmitted by vectors and has extensive reservoirs in animal and human populations. Rickettsiosis is a public health problem all over the world.
Shahin Seidi, Amir Hossein Omidi, Saber Esmaeili   +2 more
doaj   +1 more source

Rickettsia typhi as Cause of Fatal Encephalitic Typhus in Hospitalized Patients, Hamburg, Germany, 1940–1944

Emerging Infectious Diseases, 2018
We evaluated formalin-fixed paraffin-embedded tissue specimens from 7 patients who died with encephalitic typhus in Hamburg, Germany, during World War II.
Jessica Rauch, Birgit Muntau, Petra Eggert, Dennis Tappe   +3 more
doaj   +1 more source

Protein and RNA synthesis by isolated Rickettsia prowazekii [PDF]

Infection and Immunity, 1987
Purified host-cell-free Rickettsia prowazekii synthesized protein from leucine, lysine, or proline as radioactive precursor. Most, if not all, of the rickettsial proteins were synthesized. The specific activities of the newly synthesized proteins in the cytoplasmic fraction and in the envelope fraction were not significantly different, indicating that ...
openaire   +2 more sources

Typhus Group Rickettsiosis, Germany, 2010–2017

Emerging Infectious Diseases, 2018
Typhus group rickettsiosis is caused by the vectorborne bacteria Rickettsia typhi and R. prowazekii. R. typhi, which causes murine typhus, the less severe endemic form of typhus, is transmitted by fleas; R.
Jessica Rauch, Philip Eisermann, Bernd Noack, Ute Mehlhoop, Birgit Muntau, Johannes Schäfer, Dennis Tappe   +6 more
doaj   +1 more source

Transcriptional analysis of the 16s rRNA gene in Rickettsia prowazekii [PDF]

Journal of Bacteriology, 1996
The control of rRNA synthesis in the etiological agent of epidemic typhus, Rickettsia prowazekii, a slowly growing obligate intracytoplasmic bacterium, was investigated. Transcription of the rickettsial 16S rRNA gene (rrs), of which there is only a single copy, was controlled by a single promoter region, and the site for the initiation of transcription
H, Pang, H H, Winkler
openaire   +2 more sources

Transposon mutagenesis of the obligate intracellular pathogen Rickettsia prowazekii

, 2004
Genetic analysis of Rickettsia prowazekii has been hindered by the lack of selectable markers and efficient mechanisms for generating rickettsial gene knockouts.
Qin, Aiping, Hines, Andria, Tucker, Aimee M, Wood, David O   +3 more
core   +1 more source

Phylogenetic analysis of the rompB genes of Rickettsia felis and Rickettsia prowazekii European-human and North American flying-squirrel strains.

, 2000
The rickettsial outer membrane protein B (rompB) gene encodes the major surface antigens of Rickettsia species. We undertook sequencing and molecular analysis of the rompB gene of Rickettsia felis and a comparison with its homologs in spotted fever group
D H Walker, Yu, X. Y., L D Foil, X J Yu, Moron, C. G., Crocquet-Valdes, P., Walker, D. H., P Crocquet-Valdes, Bouyer, D. H., Foil, L. D., C G Moron, D H Bouyer   +11 more
core   +1 more source

Hemocytes from Pediculus humanus humanus are hosts for human bacterial pathogens.

Frontiers in Cellular and Infection Microbiology, 2015
Pediculus humanus humanus is an human ectoparasite which represents a serious public health threat because it is vector for pathogenic bacteria. It is important to understand and identify where bacteria reside in human body lice to define new strategies ...
Eric eGhigo
doaj   +1 more source