Results 41 to 50 of about 838,017 (221)

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

Spotted-Fever Group Rickettsia in Dermacentor variabilis, Maryland

Emerging Infectious Diseases, 2004
Three-hundred ninety-two adult Dermacentor variabilis were collected from six Maryland counties during the spring, summer, and fall of 2002. Infection prevalence for spotted fever group Rickettsia was 3.8%, as determined by polymerase chain reaction ...
Nicole C. Ammerman, Katherine I. Swanson, Jennifer M. Anderson, Timothy R. Schwartz, Eric C. Seaberg, Gregory E. Glass, Douglas E. Norris   +6 more
doaj   +1 more source

First molecular diagnosis of the human pathogen Rickettsia raoultii and other spotted fever group rickettsiae in Sudanese ixodid ticks from domestic ruminants

Veterinary Medicine and Science
Background Rickettsial infections are often neglected and poorly recognized by physicians in many tropical and subtropical regions. Despite a number of recent reports describing rickettsial diseases in new locations and the discovery of new rickettsiae ...
Nagwa Eisawi, Jabbar Ahmed, Mohammed A. Bakheit, Dina A. Hassan, Mohammed O. Hussien, Abdel Rahim M. El Hussein   +5 more
doaj   +1 more source

Dissemination of spotted fever rickettsia agents in Europe by migrating birds. [PDF]

PLoS ONE, 2010
Migratory birds are known to play a role as long-distance vectors for many microorganisms. To investigate whether this is true of rickettsial agents as well, we characterized tick infestation and gathered ticks from 13,260 migratory passerine birds in ...
Karin Elfving, Björn Olsen, Sven Bergström, Jonas Waldenström, Ake Lundkvist, Anders Sjöstedt, Hans Mejlon, Kenneth Nilsson   +7 more
doaj   +1 more source

Exploring the potential of using male‐killing endosymbionts to induce female‐biased insect populations for enhanced biomass production

Insect Science, EarlyView.
Overview of the mindset and long‐term goals with the approach suggested in this study. We provide a first proof of concept that male‐killing endosymbionts can be used to establish female biased populations with higher production efficiency than populations with a 50/50 sex ratio. This biological tool can have marked positive impact on future commercial
Stine F. Laursen, Perran A. Ross, Nadieh de Jonge, Ary A. Hoffmann, Torsten N. Kristensen   +4 more
wiley   +1 more source

Serological and molecular detection of spotted fever group Rickettsia in a group of pet dogs from Luanda, Angola

Parasites & Vectors, 2017
Background Infections with tick-borne rickettsiae can cause diseases well known in humans but still not so well characterized in dogs. Susceptibility to infection depends on the virulence of Rickettsia spp.
Patrícia F. Barradas, Hugo Vilhena, Ana Cristina Oliveira, Sara Granada, Irina Amorim, Paula Ferreira, Luís Cardoso, Fátima Gärtner, Rita de Sousa   +8 more
doaj   +1 more source

A horizontally acquired pantothenate gene drives vitellogenin's benefit to whitefly symbiosis persistence

Insect Science, EarlyView.
This diagram illustrates that the horizontally transferred panBC influences the level and localization of vitellogenin (Vg) by facilitating pantothenate production and juvenile hormone (JH) biosynthesis. In turn, Vg shields symbionts by suppressing autophagic degradation in bacteriocytes.
Xiang Sun, Bing‐Qi Liu, Zhan‐Bo Chen, Chu‐Qiao Li, Xing‐Ye Li, Jun‐Bo Luan   +5 more
wiley   +1 more source

An epidemiological and serological study of Rickettsia in Western Australia [PDF]

, 2011
The study was aimed at investigating Western Australian rickettsiae, delving deeper into the epidemiology of a recently described rickettsia, Rickettsia gravesii, and any other rickettsiae lurking in the Western Australian bush. Prior to the discovery of
Abdad, Mohammad
core  

Exotic Rickettsiae in Ixodes ricinus: fact or artifact? [PDF]

, 2010
Several pathogenic Rickettsia species can be transmitted via Ixodes ricinus ticks to humans and animals. Surveys of I. ricinus for the presence of Rickettsiae using part of its 16S rRNA gene yield a plethora of new and different Rickettsia sequences ...
Fonville, M., Overbeek, L.S., van, Sprong, H., Manoj Fonville, Reimerink, J.H.J., Ellen Tijsse-Klasen, Tijsse-Klasen, E., Hein Sprong, Leo van Overbeek, Johan HJ Reimerink, van Overbeek, L.S.   +10 more
core   +1 more source

A case of spotted fever group rickettsiosis imported into the United Kingdom and treated with ciprofloxacin: a case report

Journal of Medical Case Reports, 2008
Introduction Spotted fever group rickettsioses are an interesting group of infections, which are increasing in incidence worldwide. Case presentation Here we describe an imported case to the United Kingdom occurring in a patient who had recently visited ...
Rashid Rifat, Pasqualotto Alessandro C, Denning David W   +2 more
doaj   +1 more source