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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Medici, Maria Cristina Tummolo, Fabio De Grazia, Simona Calderaro, Adriana De Conto, Flora Terio, Valentina Chironna, Maria Bonura, Floriana Pucci, Marzia Bányai, Kristián Martella, Vito Giammanco, Giovanni Maurizio |
| Spatial Coverage | Italy New Orleans |
| Description | Country affiliation: Italy Author Affiliation: Medici MC ( 1âUnità di Microbiologia e Virologia, Dipartimento di Medicina Clinica e Sperimentale, Università degli Studi di Parma, Parma, Italy.); Tummolo F ( 1âUnità di Microbiologia e Virologia, Dipartimento di Medicina Clinica e Sperimentale, Università degli Studi di Parma, Parma, Italy.); De Grazia S ( 2âDipartimento di Scienze per la Promozione della Salute e Materno Infantile G. D'Alessandro, Università di Palermo, Palermo, Italy.); Calderaro A ( 1âUnità di Microbiologia e Virologia, Dipartimento di Medicina Clinica e Sperimentale, Università degli Studi di Parma, Parma, Italy.); De Conto F ( 1âUnità di Microbiologia e Virologia, Dipartimento di Medicina Clinica e Sperimentale, Università degli Studi di Parma, Parma, Italy.); Terio V ( 3âDipartimento di Medicina Veterinaria, Università Aldo Moro di Bari, Valenzano, Italy.); Chironna M ( 4âDipartimento di Scienze Biomediche ed Oncologia Umana, Sezione di Igiene e Medicina Preventiva, Policlinico di Bari, Bari, Italy.); Bonura F ( 2âDipartimento di Scienze per la Promozione della Salute e Materno Infantile G. D'Alessandro, Università di Palermo, Palermo, Italy.); Pucci M ( 2âDipartimento di Scienze per la Promozione della Salute e Materno Infantile G. D'Alessandro, Università di Palermo, Palermo, Italy.); Bányai K ( 5âInstitute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Hungária krt. 21, Budapest, 1143, Hungary.); Martella V ( 3âDipartimento di Medicina Veterinaria, Università Aldo Moro di Bari, Valenzano, Italy.); Giammanco GM ( 2âDipartimento di Scienze per la Promozione della Salute e Materno Infantile G. D'Alessandro, Università di Palermo, Palermo, Italy.) |
| Abstract | Norovirus (NoV) is one of the major causes of diarrhoeal disease with epidemic, outbreak and sporadic patterns in humans of all ages worldwide. NoVs of genotype GII.4 cause nearly 80-90 % of all NoV infections in humans. Periodically, some GII.4 strains become predominant, generating major pandemic variants. Retrospective analysis of the GII.4 NoV strains detected in Italy between 2007 and 2013 indicated that the pandemic variant New Orleans 2009 emerged in Italy in the late 2009, became predominant in 2010-2011 and continued to circulate in a sporadic fashion until April 2013. Upon phylogenetic analysis based on the small diagnostic regions A and C, the late New Orleans 2009 NoVs circulating during 2011-2013 appeared to be genetically different from the early New Orleans 2009 strains that circulated in 2010. For a selection of strains, a 3.2âkb genome portion at the 3' end was sequenced. In the partial ORF1 and in the full-length ORF2 and ORF3, the 2011-2013 New Orleans NoVs comprised at least three distinct genetic subclusters. By comparison with sequences retrieved from the databases, these subclusters were also found to circulate globally, suggesting that the local circulation reflected repeated introductions of different strains, rather than local selection of novel viruses. Phylogenetic subclustering did not correlate with changes in residues located in predicted putative capsid epitopes, although several changes affected the P2 domain in epitopes A, C, D and E. |
| File Format | HTM / HTML |
| ISSN | 00221317 |
| Issue Number | 9 |
| Volume Number | 96 |
| e-ISSN | 14652099 |
| Journal | Journal of General Virology |
| Language | English |
| Publisher | Microbiology Society |
| Publisher Date | 2015-09-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Subscribed |
| Subject Keyword | Amino Acid Sequence Research Support, Non-u.s. Gov't Norovirus Discipline Virology Gastroenteritis Humans Open Reading Frames Isolation & Purification Molecular Sequence Data Genotype Phylogeny Caliciviridae Infections Epidemiology Journal Article Virology Chemistry Sequence Alignment Capsid Proteins Classification Genetics Italy New Orleans Retrospective Studies Feces |
| Content Type | Text |
| Resource Type | Article |
| Subject | Virology |
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