Results 71 to 80 of about 66,524 (305)

Serosurvey of Rickettsia spp. and Ehrlichia canis in Dogs from Shelters in Sicily (Southern Italy)

Pathogens
Vector-borne diseases represent a serious threat to human and animal health, especially where environmental conditions favor pathogen-carrying vectors.
Santina Di Bella, Delia Gambino, Davide Pepe, Antonino Gentile, Valeria Blanda, Antonio Valenti, Francesco Santangelo, Antonino Ballatore, Giuseppe Spina, Giuseppe Barbaccia, Vincenza Cannella, Giovanni Cassata, Annalisa Guercio   +12 more
doaj   +1 more source

Tropism and Pathogenicity of Rickettsiae [PDF]

Frontiers in Microbiology, 2012
Rickettsiae are obligate intracellular parasitic bacteria that cause febrile exanthematous illnesses such as Rocky Mountain spotted fever, Mediterranean spotted fever, epidemic, and murine typhus, etc. Although the vector ranges of each Rickettsia species are rather restricted; i.e., ticks belonging to Arachnida and lice and fleas belonging to Insecta ...
openaire   +4 more sources

Thermostable Endotoxin of Rickettsiae [PDF]

Nature, 1946
Kligler and Oleinik1 reported the presence of a labile toxin in yolksac cultures of Rickettsise. The following experiments were designed in order to test whether the toxic effects of Rickettsiae are wholly brought about by this labile toxin, or are due also to the action of a thermostable toxin.
L. Olitzki, J. W. Czaczkes, A. Kutzenok, E. Oleinik   +3 more
openaire   +3 more sources

Molecular Detection of Rickettsia spp. and Other Tick-Borne Pathogens in Ticks from a Nature Reserve: Implications for Zoonotic Transmission

Animals
Ticks are a major concern for both animal and human health, as they are primary vectors of infectious pathogens. This study focused on ticks found in a nature reserve in southern Italy, highly frequented for recreational activities and inhabited by wild ...
Santina Di Bella, Valeria Blanda, Silvia Scibetta, Ilenia Giacchino, Antonino Gentile, Giuseppina Chiarenza, Vincenza Cannella, Giovanni Provinzano, Francesca Grippi, Annalisa Guercio   +9 more
doaj   +1 more source

High prevalence of Rickettsia africae variants in Amblyomma variegatum ticks from domestic mammals in rural western Kenya: implications for human health [PDF]

, 2014
Tick-borne spotted fever group (SFG) rickettsioses are emerging human diseases caused by obligate intracellular Gram-negative bacteria of the genus Rickettsia.
Ade, Fredrick, Breiman, Robert F., Cleaveland, Sarah, Cutler, Sally J., Feikin, Daniel R., Jiang, Ju, Knobel, Darryn L., Maina, Alice N., Mpoke, Solomon, Ng'ang'a, Zipporah, Njenga, M. Kariuki, Ogola, Eric, Omulo, Sylvia A., Richards, Allen L.   +13 more
core   +2 more sources

Novel Rickettsia in Ticks, Tasmania, Australia

Emerging Infectious Diseases, 2009
A novel rickettsia was detected in Ixodes tasmani ticks collected from Tasmanian devils. A total of 55% were positive for the citrate synthase gene by quantitative PCR.
Leonard Izzard, Stephen Graves, Erika Cox, Stan Fenwick, Nathan Unsworth, John Stenos   +5 more
doaj   +1 more source

Differences in microbiota between two multilocus lineages of the sugarcane Aphid (Melanaphis sacchari) in the continental United States [PDF]

, 2020
The sugarcane aphid (SCA), Melanaphis Sacchari (Zehntner) (Hemiptera: Aphididae), has been considered an invasive pest of sugarcane in the continental United States since 1977. Then, in 2013, SCA abruptly became a serious pest of U.S.
Antwi, Josephine B., Armstrong, John Scott, Costet, Laurent, Holt, Jocelyn R., Malacrinò, Antonino, McLaren, Neal, Medina, Raul F., Nibouche, Samuel, Peterson, Garry, Styer, Alex, White, Jennifer A., Wulff, Jason   +11 more
core   +1 more source

GENOMOSYSTEMATICS OF RICKETTSIAE

Russian Journal of Infection and Immunity, 2018
The definition of the term genome was given by the German botanist G. Winkler almost one hundred years ago in 1920. A genome  definition for bacterial (rickettsia) with a single chromosome was  recently presented from the perspective of information theory,  biology and bioinformatics as the information chain of nucleotides.
Shpynov Sn, N.N. Pozdnichenko, A. S. Gumenyuk, A.A. Skiba   +3 more
openaire   +3 more sources

SURVEY OF Rickettsia spp. IN TICKS IN NACOGDOCHES COUNTY, TEXAS [PDF]

, 2018
Rickettsia parkeri is an obligate intracellular pathogenic bacterium that is commonly transmitted by the Gulf Coast tick, Amblyomma maculatum. Rickettsia parkeri is the causative agent of Rickettsia parkeri rickettsiosis, which is a disease characterized
Blakley, Nathaniel
core   +1 more source

Molecular detection of pathogens in an equine fever diagnostic panel: 2019–2023

Equine Veterinary Journal, EarlyView.
Abstract Background A common diagnostic approach for febrile horses is to test for a panel of potential pathogens. Panels are curated by expert opinion and vary between diagnostic laboratories. Objectives To report the results of a newly developed equine fever diagnostic panel (EFDP) between 2019 and 2023 and evaluate the frequency of positive results.
Toby L. Pinn‐Woodcock, Melissa S. Aprea, Manigandan Lejeune, Joy E. Tomlinson   +3 more
wiley   +1 more source