Results 81 to 90 of about 1,655 (175)

Pest categorisation of Guignardia laricina

open access: yesEFSA Journal, Volume 16, Issue 6, June 2018., 2018
Abstract Following a request from the European Commission, the EFSA Panel on Plant Health performed a pest categorisation of Guignardia laricina, a well‐defined and distinguishable fungal species of the family Phyllostictaceae. The pathogen is regulated in Council Directive 2000/29/EC (Annex IAI) as a harmful organism whose introduction into the EU is ...
EFSA Panel on Plant Health (PLH)   +24 more
wiley   +1 more source

New Rickettsiae in Ticks Collected in Territories of the Former Soviet Union

open access: yesEmerging Infectious Diseases, 1999
Dermacentor nuttallii from Siberia, Rhipicephalus sanguineus from Crimea, and Rh. pumilio from the Astrakhan region were infected with Rickettsia sibirica (12%), R. conorii (8%), and the Astrakhan fever agent (3%), respectively.
Elena Rydkina   +6 more
doaj   +1 more source

Eschar-associated Spotted Fever Rickettsiosis, Bahia, Brazil

open access: yesEmerging Infectious Diseases, 2011
In Brazil, Brazilian spotted fever was once considered the only tick-borne rickettsial disease. We report eschar-associated rickettsial disease that occurred after a tick bite. The etiologic agent is most related to Rickettsia parkeri, R. africae, and R.
Nanci Silva   +10 more
doaj   +1 more source

Diversity and Phylogeny of Cattle Ixodid Ticks and Associated Spotted Fever Group Rickettsia spp. in Tunisia

open access: yesPathogens, 2023
Tick-borne rickettsioses are mainly caused by obligate intracellular bacteria belonging to the spotted fever group (SFG) of the Rickettsia genus. So far, the causative agents of SFG rickettsioses have not been detected in cattle ticks from Tunisia ...
Myriam Kratou   +7 more
doaj   +1 more source

Host-feeding behaviour of Dermacentor reticulatus and Dermacentor marginatus in mono-specific and inter-specific infestations [PDF]

open access: yes, 2015
BACKGROUND: Given the sympatric occurrence in some regions of Europe and the great epidemiological significance of D. reticulatus and D. marginatus species, we investigated the behaviour of these ticks during inter-specific and mono-specific host ...
Alicja Buczek   +3 more
core   +1 more source

Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. [PDF]

open access: yes, 2020
The class Alphaproteobacteria is comprised of a diverse assemblage of Gram-negative bacteria that includes organisms of varying morphologies, physiologies and habitat preferences many of which are of clinical and ecological importance ...
Gronow, Sabine   +9 more
core   +2 more sources

Molecular Detection of Zoonotic and Veterinary Pathogenic Bacteria in Pet Dogs and Their Parasitizing Ticks in Junggar Basin, North-Western China [PDF]

open access: yes, 2022
Despite the recognized epidemiological importance of ticks as vectors for pathogens that cause numerous zoonotic and veterinary diseases, data regarding the pathogens of pet dogs and their parasitic ticks in the Junggar Basin are scarce. In this study, a
Baryshnikov PI   +14 more
core   +2 more sources

Emerg Infect Dis [PDF]

open access: yes
We amplified gene sequences from Anaplasma phagocytophilum, Borrelia garinii, B. valaisiana, B. turdi, Rickettsia monacensis, R. helvetica, R. sibirica sibirica, and Rickettsia spp.

core   +3 more sources

Novel Spotted Fever Group Rickettsiosis, Brazil

open access: yesEmerging Infectious Diseases, 2010
We report a clinical case of spotted fever group rickettsiosis acquired in São Paulo, Brazil. Definitive diagnosis was supported by seroconversion between acute-phase and convalescent-phase serum samples.
Mariana G. Spolidorio   +5 more
doaj   +1 more source

tRNA signatures reveal polyphyletic origins of streamlined SAR11 genomes among the alphaproteobacteria [PDF]

open access: yes, 2013
Phylogenomic analyses are subject to bias from compositional convergence and noise from horizontal gene transfer (HGT). Compositional convergence is a likely cause of controversy regarding phylogeny of the SAR11 group of Alphaproteobacteria that have ...
Amrine, Katherine C. H.   +2 more
core   +4 more sources

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