نتایج جستجو برای: toxa

تعداد نتایج: 197  

Journal: :Nucleic acids research 1998
V Burland Y Shao N T Perna G Plunkett H J Sofia F R Blattner

The complete DNA sequence of pO157, the large virulence plasmid of EHEC strain O157:H7 EDL 933, is presented. The 92 kb F-like plasmid is composed of segments of putative virulence genes in a framework of replication and maintenance regions, with seven insertion sequence elements, located mostly at the boundaries of the virulence segments. One hundred open reading frames (ORFs) were identified,...

Journal: :Journal of clinical microbiology 2000
J S Moncrief L Zheng L M Neville D M Lyerly

Toxin-specific enzyme immunoassays, cytotoxicity assays, and PCR were used to analyze 48 toxin A-negative, toxin B-positive Clostridium difficile isolates from various geographical sites around the world. All the isolates were negative by the TOX-A TEST and positive by the TOX A/B TEST. A deletion of approximately 1.7 kb was found at the 3' end of the toxA gene for all the isolates, similar to ...

2012
Thais Sebastiana Porfida Ferreira Maria Roberta Felizardo Débora Dirani Sena de Gobbi Cleise Ribeiro Gomes Pedro Henrique de Lima Nogueira Filsner Marina Moreno Renata Paixão Jucélia de Jesus Pereira Andrea Micke Moreno

Pasteurella multocida is responsible for a wide range of diseases in domestic animals. In rabbits, the agent is related to nasal discharge, pneumonia, otitis media, pyometra, orchitis, abscess, and septicemia. One hundred and forty rabbits with respiratory diseases from four rabbitries in São Paulo State, Brazil were evaluated for the detection of P. multocida in their nasal cavities. A total o...

Journal: :Journal of clinical microbiology 1998
K B Register R M Lee C Thomson

Bordetella bronchiseptica and toxigenic Pasteurella multocida are the etiologic agents of swine atrophic rhinitis. Methods currently used for their identification are time-consuming and suffer from a lack of sensitivity. We describe a colony lift-hybridization assay for detection of B. bronchiseptica and toxigenic P. multocida that can be performed with a single colony lift derived from a prima...

2014
Suma George Mulamattathil Carlos Bezuidenhout Moses Mbewe Collins Njie Ateba

The aim of this study was to isolate and identify environmental bacteria from various raw water sources as well as the drinking water distributions system in Mafikeng, South Africa, and to determine their antibiotic resistance profiles. Water samples from five different sites (raw and drinking water) were analysed for the presence of faecal indicator bacteria as well as Aeromonas and Pseudomona...

Journal: :Turkish journal of medical sciences 2015
Fatma Ibrahim Sonbol Maha Abd El Fattah Khalil Abdelfattah Badr Mohamed Sameh Samir Ali

BACKGROUND/AIM Virulent Pseudomonas aeruginosa. is frequently life-threatening and often challenging to treat, and the emergence of multidrug-resistant isolates presents a critical problem for patients. The aim of the study was concerned with molecular analysis of the virulence factors and antimicrobial resistance profile of multidrug-resistant P. aeruginosa (MDRPA). MATERIALS AND METHODS Out...

2016
Thales Quedi Furian Karen Apellanis Borges Vanessa Laviniki Silvio Luis da Silveira Rocha Camila Neves de Almeida Vladimir Pinheiro do Nascimento Carlos Tadeu Pippi Salle Hamilton Luiz de Souza Moraes

Pasteurella multocida causes atrophic rhinitis in swine and fowl cholera in birds, and is a secondary agent in respiratory syndromes. Pathogenesis and virulence factors involved are still poorly understood. The aim of this study was to detect 22 virulence-associated genes by PCR, including capsular serogroups A, B and D genes and to evaluate the antimicrobial susceptibility of P. multocida stra...

2010
Paul H. Roy Sasha G. Tetu André Larouche Liam Elbourne Simon Tremblay Qinghu Ren Robert Dodson Derek Harkins Ryan Shay Kisha Watkins Yasmin Mahamoud Ian T. Paulsen

Pseudomonas aeruginosa PA7 is a non-respiratory human isolate from Argentina that is multiresistant to antibiotics. We first sequenced gyrA, gyrB, parC, parE, ampC, ampR, and several housekeeping genes and found that PA7 is a taxonomic outlier. We report here the complete sequence of the 6,588,339 bp genome, which has only about 95% overall identity to other strains. PA7 has multiple novel geno...

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