Gábor Reuter1, Harry Vennema, Marion Koopmans, György Szücs. 1. Regional Laboratory of Virology, ANTSZ Baranya County Institute of State Public Health Service, Szabadság ut 7, H-7623 Pécs, Hungary. reuterg@baranya.antsz.hu
Abstract
BACKGROUND: Noroviruses are common pathogens in gastro-enteritis outbreaks in humans worldwide. Noroviruses are genetically diverse group of viruses with multiple genogroups (GG) and genotypes. More recently, naturally occurring recombinant noroviruses were described. These viruses had a distinct polymerase gene sequence (designated GGIIb/Hilversum) and were disseminated through waterborne and food-borne transmission in Europe. OBJECTIVES: Our aim was to characterize these emerging recombinant noroviruses causing outbreaks of gastro-enteritis in Hungary. STUDY DESIGN: From January 2001 to May 2004, samples containing "GGIIb/Hilversum polymerase" (GGIIb-pol) were selected for analysis of the viral capsid region (ORF2) by reverse transcription-polymerase chain reaction (RT-PCR) and sequencing. RESULTS: Thirty-four (14.4%) of 236 confirmed norovirus outbreaks were caused by the variant lineage with the GGIIb-pol. Four different recombinants were detected with capsids of Hu/NLV/GGII/Mexico/1989 (n=9, 43%), Hu/NLV/GGII/Snow Mountain/1976 (n=6, 28%), Hu/NLV/GGII/Hawaii/1971 (n=4, 19%) and Hu/NLV/GGII/Lordsdale/1993 (n=1, 5%). CONCLUSIONS: In Hungary, emerging recombinant noroviruses became the second most common norovirus variants-next to GGII-4/Lordsdale virus-causing epidemics of gastroenteritis in the last 4 years.
BACKGROUND: Noroviruses are common pathogens in gastro-enteritis outbreaks in humans worldwide. Noroviruses are genetically diverse group of viruses with multiple genogroups (GG) and genotypes. More recently, naturally occurring recombinant noroviruses were described. These viruses had a distinct polymerase gene sequence (designated GGIIb/Hilversum) and were disseminated through waterborne and food-borne transmission in Europe. OBJECTIVES: Our aim was to characterize these emerging recombinant noroviruses causing outbreaks of gastro-enteritis in Hungary. STUDY DESIGN: From January 2001 to May 2004, samples containing "GGIIb/Hilversum polymerase" (GGIIb-pol) were selected for analysis of the viral capsid region (ORF2) by reverse transcription-polymerase chain reaction (RT-PCR) and sequencing. RESULTS: Thirty-four (14.4%) of 236 confirmed norovirus outbreaks were caused by the variant lineage with the GGIIb-pol. Four different recombinants were detected with capsids of Hu/NLV/GGII/Mexico/1989 (n=9, 43%), Hu/NLV/GGII/Snow Mountain/1976 (n=6, 28%), Hu/NLV/GGII/Hawaii/1971 (n=4, 19%) and Hu/NLV/GGII/Lordsdale/1993 (n=1, 5%). CONCLUSIONS: In Hungary, emerging recombinant noroviruses became the second most common norovirus variants-next to GGII-4/Lordsdale virus-causing epidemics of gastroenteritis in the last 4 years.
Authors: I G A Ruether; D Tsakogiannis; Z Kyriakopoulou; T G Dimitriou; C Papamichail; C Gartzonika; S Leveidiotou-Stefanou; P Markoulatos Journal: Virus Genes Date: 2013-10-20 Impact factor: 2.332
Authors: V Martella; K Bányai; E Lorusso; A L Bellacicco; N Decaro; V Mari; L Saif; V Costantini; S De Grazia; G Pezzotti; A Lavazza; C Buonavoglia Journal: Virus Genes Date: 2008-01-19 Impact factor: 2.332
Authors: Annelies Kroneman; Everardo Vega; Harry Vennema; Jan Vinjé; Peter A White; Grant Hansman; Kim Green; Vito Martella; Kazuhiko Katayama; Marion Koopmans Journal: Arch Virol Date: 2013-04-25 Impact factor: 2.574