نتایج جستجو برای: genogroup

تعداد نتایج: 702  

Journal: :Journal of clinical pathology 2005
G Szládek A Juhász G Kardos K Szoke T Major I Sziklai I Tar I Márton J Kónya L Gergely K Szarka

BACKGROUND The aetiology and factors leading to the progression of laryngeal cancer are still unclear. Although human papillomavirus (HPV) has been suggested to play a role, reports concerning the effect of HPV infection on tumour development are controversial. Recently, transfusion transmitted virus (TTV) was suggested to play a role in certain infections as a causative or coinfecting agent. ...

2008
Simone Guadagnucci Morilla Audrey Cilli Rita de Cássia Compagnoli Carmona Maria do Carmo Sampaio Tavares Timenetsky

Norovirus (NoV), previously called Norwalk-like virus, represents an important group of human pathogens associated with outbreaks of nonbacterial gastroenteritis. Epidemiological surveys of outbreaks have shown that the most important routes of transmission are person-to-person contacts and contaminated food and water, with the virus affecting adults and children. NoV is classified into genogro...

2015
Oumer Ali Abraham Aseffa Ahmed Bedru Tsehaynesh Lema Tesfaye Moti Yenenesh Tekletsion Alemayehu Worku Haimanot Guebre Xabher Lawrence Yamuah Rahamatou Moustapha Boukary Jean-Marc Collard Ibrahim Dan Dano Ibrahim Habiboulaye Bassira Issaka Jean-François Jusot Sani Ousmane Issoufa Rabe Doumagoum Moto Daugla Jean Pierre Gami Kadidja Gamougam Lodoum Mbainadji Nathan Naibei Maxime Narbé Jacques Toralta Abdoulaye Berthe Kanny Diallo Mahamadou Keita Uma Onwuchekwa Samba O. Sow Boubou Tamboura Awa Traore Alou Toure Tom Clark Leonard Mayer Mary Amodu Omeiza Beida Galadima Gadzama Babatunji Omotara Zailani Sambo Shuaibu Yahya Daniel Chandramohan Brian M. Greenwood Musa Hassan-King Olivier Manigart Maria Nascimento James M. Stuart Arouna Woukeu Nicole E. Basta Xilian Bai Ray Borrow Helen Findlow Serge Alavo Hubert Bassene Aldiouma Diallo Marietou Dieng Souleymane Doucouré Jules François Gomis Assane Ndiaye Cheikh Sokhna Jean François Trape Bugri Akalifa Abudulai Forgor Abraham Hodgson Isaac Osei Stephen L. Quaye John Williams Peter Wontuo Thomas Irving Caroline L. Trotter Julia Bennett Dorothea Hill Odile Harrison Martin C. Maiden Lisa Rebbetts Eleanor Watkins

BACKGROUND Study of meningococcal carriage is essential to understanding the epidemiology of Neisseria meningitidis infection. METHODS Twenty cross-sectional carriage surveys were conducted in 7 countries in the African meningitis belt; 5 surveys were conducted after introduction of a new serogroup A meningococcal conjugate vaccine (MenAfriVac). Pharyngeal swab specimens were collected, and N...

2011
Aude Allemandou Béatrice Grasland Anne-Cécile Hernandez-Nignol André Kéranflec'h Roland Cariolet André Jestin

Porcine circovirus type 2 (PCV-2) is the causal agent of the post-weaning multisystemic wasting syndrome (PMWS). PCV-2 are small single-stranded circular DNA viruses clustered into two main genogroups: PCV-2a and PCV-2b. Each genogroup present a specific highly-conserved motif of six amino acids (between amino acids 86 and 91) in the PCV-2 capsid protein. The aim of this study was to verify whe...

Journal: :Journal of clinical microbiology 1999
A J Maguire J Green D W Brown U Desselberger J J Gray

During the winter season from November 1996 to May 1997, 550 fecal specimens were submitted from 94 outbreaks of gastroenteritis occurring in East Anglia, United Kingdom. These specimens were tested for the presence of small round-structured viruses (SRSVs) by electron microscopy, reverse transcriptase PCR, or both methods. SRSVs were shown to be associated with 64 of 94 (68%) of these outbreak...

Journal: :Journal of virology 2005
Lisa Lindesmith Christine Moe Jacques Lependu Jeffrey A Frelinger John Treanor Ralph S Baric

Little is known about the immune response to noroviruses. To elucidate the immunobiology of norovirus infection in humans, 15 volunteers were challenged with Snow Mountain virus (SMV), a genogroup 2 norovirus. We assessed the cellular and humoral immune response and infection by analyzing stool, serum, saliva, and peripheral blood mononuclear cell (PBMC) responses pre- and postchallenge. In con...

Journal: :Journal of medical virology 2008
Susana Guix Santiago Caballero Cristina Fuentes Albert Bosch Rosa M Pintó

Human astroviruses (HAstV) are causative agents of viral gastroenteritis worldwide. A hypervariable region (HVR) is located close to the C-terminus of the nsP1a, and recent data support the involvement of the HVR-containing nonstructural protein in viral RNA replication processes, suggesting a correlation between variability in this region and pathogenic properties. The HVR of the C-terminal ns...

Journal: :The Journal of hospital infection 2017
C Corlouer B Lamy M Desroches J Ramos-Vivas E Mehiri-Zghal O Lemenand J-M Delarbre J-W Decousser

BACKGROUND Stenotrophomonas maltophilia is an opportunistic multi-drug-resistant bacterium responsible for healthcare-associated infections. Strategies for in-hospital infection control and management of carriers and environmental reservoirs remain controversial. AIM To determine the population structure of S. maltophilia strains in hospitalized infected patients and to identify putative high...

2014
Min-Yuan Chia Wan-Yu Chung Pai-Shan Chiang Yeh-Sheng Chien Mei-Shang Ho Min-Shi Lee

Enterovirus 71 (EV71) causes life-threatening epidemics in Asia and can be phylogenetically classified into three major genogroups (A ∼ C) including 11 genotypes (A, B1 ∼ B5, and C1 ∼ C5). Recently, EV71 epidemics occurred cyclically in Taiwan with different genotypes. In recent years, human studies using post-infection sera obtained from children have detected antigenic variations among differ...

2012
Salwa F. Ahmed John D. Klena Manal Mostafa Jessica Dogantemur Tracy Middleton James Hanson Peter J. Sebeny

The present study demonstrates that multiple NoV genotypes belonging to genogroup II contributed to an acute gastroenteritis outbreak at a US military facility in Turkey that was associated with significant negative operational impact. Norovirus (NoV) is an important pathogen associated with acute gastroenteritis among military populations. We describe the genotypes of NoV outbreak occurred at ...

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