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Kabayiza JC, Nilsson S, Andersson M. Rotavirus infections and their genotype distribution in Rwanda before and after the introduction of rotavirus vaccination. PLoS One 2023; 18:e0284934. [PMID: 37098095 PMCID: PMC10128998 DOI: 10.1371/journal.pone.0284934] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/11/2023] [Indexed: 04/26/2023] Open
Abstract
Rotavirus vaccination has reduced mortality and hospital admissions due to rotavirus diarrhoea, but its effect on rotavirus infections and the impact of rotavirus genotypes are still unclear. Real-time PCR was used to detect rotavirus and other pathogens in faeces samples from children below five years of age with acute diarrhoea, collected before (n = 827) and after (n = 807, 92% vaccinated) the introduction of vaccination in Rwanda in 2012. Rotavirus was genotyped by targeting VP7 to identify G1, G2, G3, G4, G9 and G12 and VP4 to identify P[4], P[6] and P[8]. In vaccinated children, rotavirus infections were rarer (34% vs. 47%) below 12 months of age, severe dehydration was less frequent, and rotavirus was more often found as a co-infecting agent. (79% vs 67%, p = 0.004). Norovirus genogroup II, astrovirus, and sapovirus were significantly more often detected in vaccinated children. The predominant rotavirus genotypes were G2P[4] and G12P[6] in 2009-2010 (50% and 12%), G9P[8] and G1P[8] in 2011-2012 (51% and 22%), and G12P[8] in 2014-2015 (63%). Rotavirus vaccination in Rwanda has reduced the severity of rotavirus gastroenteritis and rotavirus infection frequency during the first year of life. Rotavirus infections were frequent in vaccinated children with diarrhoea, often as co-pathogen. Rotavirus genotype changes might be unrelated to vaccination because shifts were observed also before its introduction.
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Affiliation(s)
- Jean-Claude Kabayiza
- Department of Paediatrics, School of Medicine and Pharmacy, University of Rwanda, Kigali, Rwanda
- Department of Paediatrics, University Teaching Hospital of Kigali, Kigali, Rwanda
| | - Staffan Nilsson
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maria Andersson
- Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Microbiology, Sahlgrenska University Hospital, Gothenburg, Sweden
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Vetter V, Gardner RC, Debrus S, Benninghoff B, Pereira P. Established and new rotavirus vaccines: a comprehensive review for healthcare professionals. Hum Vaccin Immunother 2022; 18:1870395. [PMID: 33605839 PMCID: PMC8920198 DOI: 10.1080/21645515.2020.1870395] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 12/02/2020] [Accepted: 12/28/2020] [Indexed: 01/05/2023] Open
Abstract
Robust scientific evidence related to two rotavirus (RV) vaccines available worldwide demonstrates their significant impact on RV disease burden. Improving RV vaccination coverage may result in better RV disease control. To make RV vaccination accessible to all eligible children worldwide and improve vaccine effectiveness in high-mortality settings, research into new RV vaccines continues. Although current and in-development RV vaccines differ in vaccine design, their common goal is the reduction of RV disease risk in children <5 years old for whom disease burden is the most significant. Given the range of RV vaccines available, informed decision-making is essential regarding the choice of vaccine for immunization. This review aims to describe the landscape of current and new RV vaccines, providing context for the assessment of their similarities and differences. As data for new vaccines are limited, future investigations will be required to evaluate their performance/added value in a real-world setting.
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Affiliation(s)
- Volker Vetter
- Medical Affairs Department, GSK, Wavre, Belgium
- Vaccines R&D – Technical R&D, GSK, Wavre, Belgium
| | - Robert C. Gardner
- Medical Affairs Department, GSK, Wavre, Belgium
- Vaccines R&D – Technical R&D, GSK, Wavre, Belgium
| | - Serge Debrus
- Medical Affairs Department, GSK, Wavre, Belgium
- Vaccines R&D – Technical R&D, GSK, Wavre, Belgium
| | - Bernd Benninghoff
- Medical Affairs Department, GSK, Wavre, Belgium
- Vaccines R&D – Technical R&D, GSK, Wavre, Belgium
| | - Priya Pereira
- Medical Affairs Department, GSK, Wavre, Belgium
- Vaccines R&D – Technical R&D, GSK, Wavre, Belgium
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Koukou DM, Michos A, Chatzichristou P, Trimis G, Tatsi EB, Dellis C, Zachariadou L, Liakopoulou T, Chrousos GP, Syriopoulou V. Rotavirus epidemiology and genotype distribution in hospitalised children, Greece, 2008 to 2020: A prospective multicentre study. Euro Surveill 2022; 27:2101133. [PMID: 36695456 PMCID: PMC9693793 DOI: 10.2807/1560-7917.es.2022.27.47.2101133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BackgroundTwo rotavirus (RV) vaccines were licensed in Greece in late 2006 and included in the national immunisation programme in 2012.AimTo study the epidemiology and genotype distribution of RV in children during the post-vaccination period and assess the impact of increased vaccination coverage.MethodsIn a prospective multicentre hospital-based study, hospitalised children (≤ 16 years) with an RV-positive faecal sample were recruited. Epidemiological and genotyping analyses were performed; periods of low (2008-12) and moderate (2012-20) RV vaccination coverage were compared. Statistical analysis was performed with a chi-squared or Mann-Whitney U test and logistic regression.ResultsA total of 3,874 children (55.6% male; n = 2,153) with median age of 1.4 years (IQR: 0.5-3.3) were studied during 2008-20. Most RV-infected children were aged ≤ 3 years (72.2%) and hospitalised during December-May (69.1%). Common RV genotypes (G1P[8], G2P[4], G3P[8], G4P[8], G9P[8], G12P[8]) were detected in 92.2% of samples; G-P combinations with prevalence above 1% were G4P[8] (44.1%), G1P[8] (25.4%), G2P[4] (14.9%), G9P[8] (3.5%), G12P[8] (2.2%), G3P[8] (2.1%), other (4.3%) and mixed (3.5%). Of all samples, 97.6% were homotypic or partially heterotypic to vaccines' genotypes. With moderate vaccination coverage, the seasonal peak was detected earlier, children were older and partially or fully heterotypic genotypes were increased (p < 0.001).ConclusionsIn the era of moderate RV vaccination coverage in Greece, epidemiology of RV in hospitalised children seemed to change. However, most circulating genotypes remain homotypic or partially heterotypic to RV vaccines. Continuous epidemiological surveillance and genotyping are important to monitor possible changes arising from RV vaccines' implementation.
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Affiliation(s)
- Dimitra-Maria Koukou
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, ‘Aghia Sophia’ Children’s Hospital, Athens, Greece
| | - Athanasios Michos
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, ‘Aghia Sophia’ Children’s Hospital, Athens, Greece
| | - Panagiota Chatzichristou
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, ‘Aghia Sophia’ Children’s Hospital, Athens, Greece
| | - Georgios Trimis
- MSD Greece, Medical and Scientific Affairs Department, Athens, Greece
| | - Elizabeth-Barbara Tatsi
- University Research Institute of Maternal and Child Health and Precision Medicine, Athens, Greece
| | - Charilaos Dellis
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, ‘Aghia Sophia’ Children’s Hospital, Athens, Greece
| | | | | | - George P Chrousos
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, ‘Aghia Sophia’ Children’s Hospital, Athens, Greece,University Research Institute of Maternal and Child Health and Precision Medicine, Athens, Greece
| | - Vasiliki Syriopoulou
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, ‘Aghia Sophia’ Children’s Hospital, Athens, Greece
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Koukou DM, Michos A, Chatzichristou P, Trimis G, Tatsi EB, Dellis C, Zachariadou L, Liakopoulou T, Chrousos GP, Syriopoulou V. Rotavirus epidemiology and genotype distribution in hospitalised children, Greece, 2008 to 2020: A prospective multicentre study. Euro Surveill 2022; 27. [PMID: 36695456 DOI: 10.2807/1560-7917.es.2022.27.47.2101133/cite/plaintext] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023] Open
Abstract
BackgroundTwo rotavirus (RV) vaccines were licensed in Greece in late 2006 and included in the national immunisation programme in 2012.AimTo study the epidemiology and genotype distribution of RV in children during the post-vaccination period and assess the impact of increased vaccination coverage.MethodsIn a prospective multicentre hospital-based study, hospitalised children (≤ 16 years) with an RV-positive faecal sample were recruited. Epidemiological and genotyping analyses were performed; periods of low (2008-12) and moderate (2012-20) RV vaccination coverage were compared. Statistical analysis was performed with a chi-squared or Mann-Whitney U test and logistic regression.ResultsA total of 3,874 children (55.6% male; n = 2,153) with median age of 1.4 years (IQR: 0.5-3.3) were studied during 2008-20. Most RV-infected children were aged ≤ 3 years (72.2%) and hospitalised during December-May (69.1%). Common RV genotypes (G1P[8], G2P[4], G3P[8], G4P[8], G9P[8], G12P[8]) were detected in 92.2% of samples; G-P combinations with prevalence above 1% were G4P[8] (44.1%), G1P[8] (25.4%), G2P[4] (14.9%), G9P[8] (3.5%), G12P[8] (2.2%), G3P[8] (2.1%), other (4.3%) and mixed (3.5%). Of all samples, 97.6% were homotypic or partially heterotypic to vaccines' genotypes. With moderate vaccination coverage, the seasonal peak was detected earlier, children were older and partially or fully heterotypic genotypes were increased (p < 0.001).ConclusionsIn the era of moderate RV vaccination coverage in Greece, epidemiology of RV in hospitalised children seemed to change. However, most circulating genotypes remain homotypic or partially heterotypic to RV vaccines. Continuous epidemiological surveillance and genotyping are important to monitor possible changes arising from RV vaccines' implementation.
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Affiliation(s)
- Dimitra-Maria Koukou
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, 'Aghia Sophia' Children's Hospital, Athens, Greece
| | - Athanasios Michos
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, 'Aghia Sophia' Children's Hospital, Athens, Greece
| | - Panagiota Chatzichristou
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, 'Aghia Sophia' Children's Hospital, Athens, Greece
| | - Georgios Trimis
- MSD Greece, Medical and Scientific Affairs Department, Athens, Greece
| | - Elizabeth-Barbara Tatsi
- University Research Institute of Maternal and Child Health and Precision Medicine, Athens, Greece
| | - Charilaos Dellis
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, 'Aghia Sophia' Children's Hospital, Athens, Greece
| | | | | | - George P Chrousos
- University Research Institute of Maternal and Child Health and Precision Medicine, Athens, Greece
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, 'Aghia Sophia' Children's Hospital, Athens, Greece
| | - Vasiliki Syriopoulou
- First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, 'Aghia Sophia' Children's Hospital, Athens, Greece
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Cheng X, Wu W, Teng F, Yan Y, Li G, Wang L, Wang X, Wang R, Zhou H, Jiang Y, Cui W, Tang L, Li Y, Qiao X. Isolation and Characterization of Bovine RVA from Northeast China, 2017-2020. Life (Basel) 2021; 11:life11121389. [PMID: 34947920 PMCID: PMC8703504 DOI: 10.3390/life11121389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/05/2021] [Accepted: 12/08/2021] [Indexed: 12/01/2022] Open
Abstract
Group A rotaviruses (RVAs) are major enteric pathogens causing infections in calves. To investigate the epidemiological characteristics and genetic diversity of bovine rotavirus (BRV), 233 fecal samples were collected from calves with diarrhea in northeast China. The samples were analyzed for sequences encoding the inner capsid protein VP6 (subgroup) and the outer capsid proteins VP7 and VP4 (G and P type, respectively) using RT-PCR. Ten of the 233 samples (4.3%) were identified as BRV positive and were used for virus isolation and sequence analysis, revealing that all strains analyzed were of the G6P[1] genotype. The isolates exhibited high VP6 sequence identity to the USA cow RVA NCDV strain (>99% amino acid identity) and were further shown to be closely related to Japanese cow RVA BRV101 and Israelian human RVA G6P[1] strains, with >99% amino acid identity to VP7 and VP4 proteins, respectively. Comparative analyses of genome-predicted amino acid sequences between the isolates and the NCDV strains indicated that the antigenicity and infectivity of the strains isolated had changed. In this study, BRV genotypes and the genetic diversity among vaccinated cattle herds were monitored to provide epidemiological data and references for early diagnosis, allowing for early detection of new, potentially pathogenic RVA strains.
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Affiliation(s)
- Xi Cheng
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Wei Wu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Fei Teng
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Yue Yan
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Guiwei Li
- Branch of Animal Husbandry and Veterinary of Heilongjiang Academy of Agricultural Sciences, Qiqihar 161000, China;
| | - Li Wang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Xiaona Wang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Ruichong Wang
- Department for Radiological Protection, Heilongjiang Province Center for Disease Control and Prevention, Harbin 150030, China;
| | - Han Zhou
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Yanping Jiang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Wen Cui
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Lijie Tang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Yijing Li
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
| | - Xinyuan Qiao
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Department of Preventive, Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China; (X.C.); (W.W.); (F.T.); (Y.Y.); (L.W.); (X.W.); (H.Z.); (Y.J.); (W.C.); (L.T.); (Y.L.)
- Correspondence:
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Atabakhsh P, Kargar M, Doosti A. Detection and evaluation of rotavirus surveillance methods as viral indicator in the aquatic environments. Braz J Microbiol 2021; 52:811-820. [PMID: 33599964 PMCID: PMC8105488 DOI: 10.1007/s42770-020-00417-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 12/21/2020] [Indexed: 12/27/2022] Open
Abstract
Group A rotaviruses (RVAs) have been introduced as the most important causative agents of acute gastroenteritis in the young children. One of every 260 children born globally will die due to rotavirus (RV) before 5 years old. The RV is widely known as a viral indicator for health (fecal contamination) because this pathogen has a high treatment resistance nature, which has been listed as a relevant waterborne pathogen by the World Health Organization (WHO). Therefore, monitoring of environmental is important, and RV is one of the best-known indicators for monitoring. It has been proved that common standards for microbiological water quality do not guarantee the absence of viruses. On the other hand, in order to recover and determine RV quantity within water, standard methods are scarce. Therefore, dependable prediction of RV quantities in water sample is crucial to be able to improve supervision efficiency of the treatment procedure, precise quantitative evaluation of the microbial risks as well as microbiological water safety. Hence, this study aimed to introduce approaches to detecting and controlling RV in environmental waters, and discussed the challenges faced to enable a clear perception on the ubiquity of the RV within different types of water across the world.
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Affiliation(s)
- Paymaneh Atabakhsh
- Department of Microbiology, Isfahan Water and Wastewater Company, Isfahan, Iran
- Department of Microbiology, Jahrom Branch, Islamic Azad University, Jahrom, Iran
| | - Mohammad Kargar
- Department of Microbiology, Jahrom Branch, Islamic Azad University, Jahrom, Iran
| | - Abbas Doosti
- Biotechnology Research Center, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
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Rotavirus Strain Surveillance in Estonia After Introduction of Rotavirus Universal Mass Vaccination. Pediatr Infect Dis J 2021; 40:489-494. [PMID: 33847298 DOI: 10.1097/inf.0000000000003039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Estonia implemented the rotavirus (RV) vaccine into its national immunization program in July 2014. We aimed to determine circulating RV genotypes and the clinical profile by genotypes from February 1, 2015, to August 30, 2016, among children 0-18 years hospitalized due to rotavirus gastroenteritis (RVGE). METHODS During an observational study in 7 Estonian hospitals, we determined the RV genotypes in stool samples of RVGE patients who met predetermined criteria. Shannon's diversity index (H´) and Simpson's index (D) was used to evaluate genotype diversity by season and age and to compare prevaccine period data (2007-2008) for children 0-4 years of age (n = 77) to corresponding data from the postvaccine period (2015-2016, n = 346). The Vesikari Clinical Severity Scoring System was used for clinical profile evaluation. RESULTS Stool samples of 479 RVGE patients were genotyped. Seventy-seven percent of RVGE infections were caused by G4P[8] (n = 150, 31%), G1P[8] (n = 100, 21%), G9P[8] (n = 79, 16%), G2P[4] (n = 23, 5%), G4P[4] (n = 17, 4%). The prevailing genotypes varied seasonally. Diversity increased during the postvaccine period among age groups 0-4: H´1.42 (95% CI: 1.2-1.7) in the prevaccine era versus 1.8 (95% CI: 1.7-2) in the postvaccine era (P = 0.008), and D 0.6 (95% CI: 0.5-0.7) versus 0.78 (0.75-0.80) (P = 0.01), respectively. The off-season period presented higher diversity compared with in-seasons. G2P[8], G1P[8], G4P[4], G9P[8], and G8P[8] presented with a different clinical profile compared with others. CONCLUSION Since the introduction of universal mass vaccination in Estonia, the circulating RV genotypes have changed compared with those reported in the prevaccine era. Our study adds to knowledge about RV genotype distribution in Europe and expected dynamics after RV universal mass vaccination and provides insight on the clinical profile of prevailing genotypes.
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Genotype constellation of a rotavirus A field strain with an uncommon G8P[11] genotype combination in a rotavirus-vaccinated dairy cattle herd. Arch Virol 2020; 165:1855-1861. [PMID: 32472289 DOI: 10.1007/s00705-020-04675-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/22/2020] [Indexed: 01/14/2023]
Abstract
In this report we describe the genotype constellation of a bovine rotavirus A (RVA) strain with an uncommon G8P[11] genotype combination. The RVA/Cow-wt/BRA/Y136/2017/G8P[11] strain was classified as G8-P[11]-I2-R5-C2-M2-A3-N2-T9-E2-H3. Phylogenetic analysis based on the VP7 gene showed that the Y136 strain and a human G8P[1] strain comprise a putative new (VII) lineage for the G8 genotype. In addition, two other genotypes, R5 (VP1) and T9 (NSP3), were identified in the constellation of Y136 that are rarely found in RVA strains of bovine origin. The immunological pressure caused by regular vaccination of cows might be responsible for the selection of heterologous RVA strains.
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Full genome characterization of human G3P[6] and G3P[9] rotavirus strains in Lebanon. INFECTION GENETICS AND EVOLUTION 2019; 78:104133. [PMID: 31812761 DOI: 10.1016/j.meegid.2019.104133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/04/2019] [Accepted: 12/02/2019] [Indexed: 11/24/2022]
Abstract
Rotaviruses are the most common infectious agents causing severe diarrheal diseases in young children globally. Three rare human rotavirus strains, two G3P[9] and one G3P[6], were detected in stool samples of children under 5 years of age hospitalized for gastroenteritis in Lebanon during the course of a surveillance study. Complete genomes of these strains were sequenced using VirCapSeq-VERT, a capture based high-throughput sequencing method. Genomic sequences were further characterized by using phylogenetic analyses with global RVA G3P[6]/P[9] strains, other vaccine and reference strains. Genetic analysis revealed that the G3P[6] strain emerged as a DS-1/Wa-like mono-reassortant strain with a potential Ethiopian origin. The two G3P[9] strains possessed a mixed DS-1/Wa/AU-1-like origin indicating that these may have evolved via multiple reassortment events involving feline, human and bovine rotaviruses. Furthermore, analysis of these strains revealed high antigenic variability compared to the vaccine strains. Additional studies are essential to fully understand the evolutionary dynamics of G3P[6]/P[9] strains spreading worldwide and their implications on vaccine effectiveness.
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Lee SK, Choi S, Kim JS, Lee EJ, Hyun J, Kim HS. Whole-genome analysis of rotavirus G4P[6] strains isolated from Korean neonates: association of Korean neonates and rotavirus P[6] genotypes. Gut Pathog 2019; 11:37. [PMID: 31333764 PMCID: PMC6621965 DOI: 10.1186/s13099-019-0318-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 07/06/2019] [Indexed: 12/20/2022] Open
Abstract
Background Group A rotaviruses are the major causative agents of pediatric gastroenteritis worldwide. Several studies have reported the predominance of G4P[6] rotavirus genotypes in Korean neonates, which is uncommon in other countries. Therefore, the purposes of this study were to determine the genotype constellations of complete genomes of G4P[6] rotavirus strains isolated from Korean neonates using next-generation sequencing, to compare these sequences with other G4P[6] strains in other countries, and to determine the reason for the predominance of G4P[6] genotypes in Korean neonates. Results Twenty rotavirus G4P[6] strains, isolated from January 2013 to January 2016, were selected for whole-genome sequencing. Eleven rotavirus genes were amplified using specific primer sets, and sequencing was carried out using an Ion S5 XL next-generation sequencing platform. Genotypes of each gene were determined, and phylogenetic analyses were performed to investigate genetic distances between genes of rotaviruses in this study and those of other rotavirus G4P[6] strains whose whole-genome sequences were previously published. All 20 rotavirus strains in this study had the same genotype: G4-P[6]-I1-R1-C1-M1-A1-N1-T1-E1-H1, representing the Wa-like genotype constellation. BLAST searches of 20 G4P[6] rotavirus strains revealed that all G4 sequences in this study showed the highest nucleotide identity to G4 sequences of G4P[6] rotavirus strains isolated in Korea in 2008 (GenBank accession number: FJ603447). Additionally, P[6] gene sequences in this study showed the highest nucleotide identity to P[6] sequences of G4P[6] strains detected in Korea in 2002 (AY158093). Phylogenetic and nucleotide sequence analyses showed that G4P[6] strains in this study and previously reported G4P[6] strains in Korea were mostly detected in neonates and had similar G4 and P[6] sequences compared with other G4P[6] strains detected in other countries. Conclusions This study showed that the whole-genome constellation of rotavirus G4P[6] strains from Korean neonates resembled a Wa-like genotype constellation. Additionally, rotavirus genotypes detected in Korean neonates had unique P[6] sequences, which may be the cause of Korean neonatal rotavirus infection. Electronic supplementary material The online version of this article (10.1186/s13099-019-0318-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Su-Kyung Lee
- 1Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, College of Medicine, Hallym University, 7, Keunjaebong-gil, Hwaseong-si, Gyeonggi-Do, 18450 South Korea
| | - Seoheui Choi
- 2Department of Pediatrics, Hallym University Dongtan Sacred Heart Hospital, College of Medicine, Hallym University, 7, Keunjaebong-gil, Hwaseong-si, Gyeonggi-Do, 18450 South Korea
| | - Jae-Seok Kim
- 3Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, College of Medicine, Hallym University, 150, Seongan-ro, Gangdong-gu, Seoul, 05355 South Korea
| | - Eun Jin Lee
- 1Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, College of Medicine, Hallym University, 7, Keunjaebong-gil, Hwaseong-si, Gyeonggi-Do, 18450 South Korea
| | - Jungwon Hyun
- 1Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, College of Medicine, Hallym University, 7, Keunjaebong-gil, Hwaseong-si, Gyeonggi-Do, 18450 South Korea
| | - Hyun Soo Kim
- 1Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, College of Medicine, Hallym University, 7, Keunjaebong-gil, Hwaseong-si, Gyeonggi-Do, 18450 South Korea
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Kozyra I, Kozyra J, Dors A, Rzeżutka A. Molecular chracterisation of porcine group A rotaviruses: Studies on the age-related occurrence and spatial distribution of circulating virus genotypes in Poland. Vet Microbiol 2019; 232:105-113. [PMID: 31030833 DOI: 10.1016/j.vetmic.2019.03.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/22/2019] [Accepted: 03/22/2019] [Indexed: 01/17/2023]
Abstract
Rotaviruses of group A (RVAs) commonly occur in farm animals. In pigs, they cause acute gastrointestinal disease which is considered as significant factor of economic losses in pig farming. The aim of the study was an assessment of the prevalence of rotavirus (RV) infections in farmed pigs in Poland, genotype identification of the virus strains in conjunction with their age-related occurrence and regional (province) distribution pattern in pig herds. In total, 920 pig faecal samples were collected from pigs between the ages of one week and two years old from 131 farms. RVAs were detected using ELISA and molecular methods followed by a sequence-based identification of G (VP7) and P (VP4) virus genotypes. RV antigen was found in 377 (41%) of pig faecal samples. The correlation between pig age and frequency of RV infections was shown. In the Polish pig population, 145 RVA strains representing 33 GP genotypes were identified. Subsequent molecular analysis revealed an age-dependent and regional diversity in distribution of genotypes and virus strains. Besides typical pig RVA strains, novel strains such as G5P [34], G9P[34], and human G1P[8] were identified in this animal host. Findings from this study showed a change over time in the genotype occurrence of circulating pig RVAs in Poland. The high genetic variability of RV strains and acquisition of new virus genotypes have led to the emergence of novel, genetically distinct RVAs. The changes in the genotype occurrence of RVA strains in pigs indicate the need for their continuous epidemiological surveillance.
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Affiliation(s)
- Iwona Kozyra
- Department of Food and Environmental Virology, National Veterinary Research Institute, Al. Partyzantów 57, 24-100, Puławy, Poland
| | - Jerzy Kozyra
- Department of Bioeconomy and Systems Analysis, Institute of Soil Science and Plant Cultivation, ul. Czartoryskich 8, 24-100, Puławy, Poland
| | - Arkadiusz Dors
- Department of Swine Diseases, National Veterinary Research Institute, Al. Partyzantów 57, 24-100, Puławy, Poland
| | - Artur Rzeżutka
- Department of Food and Environmental Virology, National Veterinary Research Institute, Al. Partyzantów 57, 24-100, Puławy, Poland.
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Abstract
Foodborne pathogens cause acute and chronic health outcomes of very different durations, severity and mortality, resulting in high costs and burdens to society. The issues of food safety and food poisoning are being increasingly emphasised, particularly in developed countries. Infection/contamination with many agents i.e., bacterial, parasitic and viral entities can result in foodborne illness. This article will focus mainly on viral agents of infection. A range of different viruses can cause food poisoning/foodborne infection, and infection can result in a myriad of symptoms, ranging from mild, acute disease to chronic, debilitating disease and even death. Due to the inherent differences between bacteria and viruses, namely the fact that viruses do not replicate in food, while bacteria do, viruses are frequently difficult to detect. This is compounded by the fact that many of the viruses associated with enteric disease do not replicate in cell culture. These factors can lead to a lag between reporting, detection and analysis of foodborne viruses versus bacterial agents. Despite these constraints, it is now evident that there are both well-established and emerging viruses implicated in foodborne infections, and the role of molecular detection and characterisation is becoming increasingly important.
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Cross-sectional study of the G and P genotypes of rotavirus A field strains circulating in regularly vaccinated dairy cattle herds. Trop Anim Health Prod 2018; 51:887-892. [DOI: 10.1007/s11250-018-1769-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/28/2018] [Accepted: 11/29/2018] [Indexed: 10/27/2022]
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Abstract
Background Rotaviruses are the major causes of pediatric gastroenteritis worldwide. The genotypic distribution of rotavirus strains shows temporal and geographical fluctuations, and knowledge of the molecular epidemiology of rotaviruses is important for the development of vaccines and diagnostic reagents. We investigated VP4 and VP7 capsid genotypes of rotaviruses isolated from 211 stool specimens collected from Korean neonates in a neonatal intensive care unit from September 2017 to March 2018. Results Of 211 stool specimens, 15 specimens (7.1%) were rotavirus-positive. Eleven specimens (73.3%) were G8P[6] type and 4 (26.7%) were G4P[6] type. Sequence analysis revealed that all G8 sequences in this study showed the highest nucleotide identity to G8 sequences of G8P[8] rotavirus strains isolated in Vietnam in 2014, and P[6] gene sequences showed the highest nucleotide identity to P[6] sequences of G4P[6] strains detected in Korea in 2012. Only one amino acid difference in VP7 was found in 3 of the 11 G8P[6] strains in this study, but multiple amino acid substitutions in VP7 were detected between these G8P[6] strains and the commonly used vaccine strains. Conclusions This study showed that rotavirus G8P[6] strains were firstly detected at high frequency in Korean neonates from September 2017 to March 2018. These new rotavirus G8P[6] strains were estimated to be derived from reassortment events between the G8 of G8P[8] strains in Asian region and the P[6] of G4[6] in Korea. Whether the emergence of this unusual G8P[6] strain reflects continuous prevalence or transient occurrence will require continuous monitoring of rotavirus epidemiology.
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Costantino C, Restivo V, Tramuto F, Casuccio A, Vitale F. Universal rotavirus vaccination program in Sicily: Reduction in health burden and cost despite low vaccination coverage. Hum Vaccin Immunother 2018; 14:2297-2302. [PMID: 29757707 PMCID: PMC6183134 DOI: 10.1080/21645515.2018.1471306] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Rotavirus is considered the main cause of severe gastroenteritis and nosocomial infections in Pediatric units, especially during late winter and early spring season in temperate region. In 2013 Sicilian Region, for the first time in Italy, introduced universal Rotavirus vaccination. This study aims to estimate health and economic impact on rotavirus Gastroenteritis (RVGE) among children aged 0–59 months in Sicily, after rotavirus vaccine introduction. We analyzed hospital discharge records including a diagnosis of RVGE occurred from 1st January 2009 to 31st December 2016 among hospitalized children aged 0 to 59 months, residents in Sicily. RVGEs were defined as all hospitalizations with an ICD-9-CM diagnosis code of 008.61 on first or any diagnosis position. Also an economic impact analysis on Health Regional System was conducted. We observed a consistent decline of hospitalization after rotavirus vaccination introduction from 394 per 100,000 in 2009–2012 to 220 per 100,000 in 2013–2016. We found a change in the peak of reported cases by at least one month from March-April in the pre-vaccination period to May-June in the post-vaccination period. Since 2013, we estimated that the annual average cost saved is 1,134,056 € when considering direct and indirect costs to health care as well as vaccination costs. Our study is the first analysis conducted as far as we are aware in a high-income setting with poor coverage (lower than 50%), demonstrating a significant reduction of RVGE hospitalizations in Sicily after vaccine introduction. Moreover, was observed a consistent impact of vaccination on health care cost saving.
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Affiliation(s)
- Claudio Costantino
- a Department of Science for Health Promotion and Mother to Child Care "G. D'Alessandro" - University of Palermo , Palermo , Italy
| | - Vincenzo Restivo
- a Department of Science for Health Promotion and Mother to Child Care "G. D'Alessandro" - University of Palermo , Palermo , Italy
| | - Fabio Tramuto
- a Department of Science for Health Promotion and Mother to Child Care "G. D'Alessandro" - University of Palermo , Palermo , Italy
| | - Alessandra Casuccio
- a Department of Science for Health Promotion and Mother to Child Care "G. D'Alessandro" - University of Palermo , Palermo , Italy
| | - Francesco Vitale
- a Department of Science for Health Promotion and Mother to Child Care "G. D'Alessandro" - University of Palermo , Palermo , Italy
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Pietsch C, Liebert UG. Evidence for presumable feline origin of sporadic G6P[9] rotaviruses in humans. INFECTION GENETICS AND EVOLUTION 2018; 63:180-194. [PMID: 29860097 DOI: 10.1016/j.meegid.2018.05.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/28/2018] [Accepted: 05/30/2018] [Indexed: 01/19/2023]
Abstract
Species A rotaviruses are highly diverse and impose a substantial burden to human and animal health. Interspecies transmission between livestock, domestic animals and humans is commonly observed, but spread of animal-like rotaviruses within the human population is limited. During the continued monitoring of rotavirus strains in Germany, an unusual G6P[9] rotavirus strain was detected in feces of a child. The complete rotavirus coding sequences revealed a unique G6-P[9]-I2-R2-C2-M2-A3-N2-T3-E2-H3 genotype constellation. The virus was phylogenetically related to feline G3P[9] strains and other human G6P[9] rotaviruses of presumable zoonotic origin. Analysis of primer binding sites of G6 specific genotyping revealed further evidence of a G6P[9] feline reservoir. Moreover, substantial deficits of conventional semi-nested PCR genotyping approaches in detecting contemporary G6P[9] were revealed. Rotavirus strain GER29-14 most likely resulted from a direct or recent interspecies transmission from a cat to human. Further studies could assess nucleic acid sequences and genotype constellations of feline rotavirus to confirm the likely feline origin of sporadic human G6P[9] strains.
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Affiliation(s)
- Corinna Pietsch
- Institute of Virology, Leipzig University, Leipzig, Germany.
| | - Uwe G Liebert
- Institute of Virology, Leipzig University, Leipzig, Germany
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Hemming-Harlo M, Vesikari T, Uhari M, Renko M, Salminen M, Torcel-Pagnon L, Hartwig S, Simondon F, Bricout H. Sustained High Effectiveness of RotaTeq on Hospitalizations Attributable to Rotavirus-Associated Gastroenteritis During 4 Years in Finland. J Pediatric Infect Dis Soc 2017; 6:317-323. [PMID: 27760800 PMCID: PMC7107484 DOI: 10.1093/jpids/piw061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 08/25/2016] [Indexed: 12/28/2022]
Abstract
KEY POINTS The effectiveness of pentavalent rotavirus vaccine against rotavirus-associated hospitalization was more than 90% 4 years after introduction into the national immunization program in Finland. A major impact on hospitalization for all-cause gastroenteritis was observed also. BACKGROUND Rotavirus vaccination with exclusive use of RotaTeq was added to the National Immunization Programme (NIP) of Finland in September 2009. The objective of our study was to estimate the effectiveness and impact of RotaTeq after 4 years of follow-up. METHODS Between 2009 and 2013, we conducted a prospective surveillance study of children aged <16 years with acute gastroenteritis (AGE) and admitted in 2 hospitals in Finland. Rotavirus and other gastroenteritis viruses were detected in stool samples by reverse-transcription polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assays. The effectiveness of RotaTeq was investigated by using a case-control design; wild-type rotavirus-positive children were classified as "cases" and rotavirus-negative children as "controls." Hospital discharge records were used to estimate the impact of RotaTeq on rotavirus-associated AGE (RV-AGE) and all-cause AGE (AC-AGE) hospitalizations of age-eligible children in the NIP by comparing the prevaccination (2001-2006) and post-NIP seasons (2009-2013). RESULTS The crude estimate of the effectiveness of RotaTeq to prevent RV-AGE hospitalization in NIP age-eligible children was 94.4% (95% confidence interval, 79.8%-98.4%). No change in prevalent wild-type rotavirus genotypes was observed. Vaccine-derived rotaviruses were detected in 8% of the children with RV-AGE, with a probable causal association in 2 children. Hospital discharge records revealed that RV-AGE and AC-AGE hospitalizations in children aged <16 years decreased in the two post-NIP seasons by 79% and 58%, respectively, compared to those in the prevaccination seasons. CONCLUSIONS Over 4 years of follow-up, high rotavirus vaccine coverage in the NIP (>95%) has led to a major reduction in RV-AGE and AC-AGE hospitalizations without a resurgence of rotavirus activity. However, rotavirus continues to circulate in older unvaccinated children.
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Affiliation(s)
- Maria Hemming-Harlo
- Vaccine Research Center, School of Medicine, University of Tampere,Corresponding Author: Maria Hemming-Harlo, MD, PhD, Biokatu 10, 33520 Tampere, Finland. E-mail:
| | - Timo Vesikari
- Vaccine Research Center, School of Medicine, University of Tampere
| | - Matti Uhari
- PEDEGO Research Unit, University of Oulu, Finland
| | - Marjo Renko
- PEDEGO Research Unit, University of Oulu, Finland
| | - Marjo Salminen
- Vaccine Research Center, School of Medicine, University of Tampere
| | | | | | - Francois Simondon
- IRD UMR 216, Faculté de Pharmacie, Université Paris Descartes, France
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Decrease of Rotavirus Gastroenteritis to a Low Level Without Resurgence for Five Years After Universal RotaTeq Vaccination in Finland. Pediatr Infect Dis J 2016; 35:1304-1308. [PMID: 27455440 DOI: 10.1097/inf.0000000000001305] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Universal rotavirus (RV) vaccination with RotaTeq was introduced into National Immunization Programme (NIP) of Finland in September 2009. We have previously reported the reduction of RV gastroenteritis (GE) cases in the first 2 years after RV vaccination in NIP in Finland. METHODS In Tampere University Hospital, a 2-year survey of acute GE (AGE) in children was conducted before NIP in the years 2006 to 2008. This was followed by a similar prospective survey in years 2009 to 2011 and now extended to years 2012 to 2014. Stool samples from children examined in the hospital for AGE were analyzed by real-time polymerase chain reaction assays for RV and norovirus, and positive samples were typed by sequencing. RESULTS The proportion of RVGE of all AGE cases decreased from 52% (421 of 809 cases) in pre-NIP years to 26% (86 of 330 cases) in post-NIP years 2009 to 2011 falling to 12% (40 of 347 cases) in 2012 and 2014. The hospitalizations for RVGE were reduced by 90% and the outpatient clinic visits also by 90% in 2012 to 2014, compared with pre-NIP year; all AGE cases were reduced by 59%. Norovirus was a major causative agent of AGE in the post-NIP period, accounting for 34% of the cases in 2009 to 2011 and 29% in 2012 to 2014. CONCLUSIONS RV vaccination in NIP has led to a major reduction of RVGE cases seen in hospital with no resurgence in 5 years after NIP. A high coverage of RV vaccination will maintain RV activity at a low level but not eliminate wild-type RV circulation.
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The prevalence of enteric RNA viruses in stools from diarrheic and non-diarrheic people in southwestern Alberta, Canada. Arch Virol 2016; 162:117-128. [PMID: 27686073 DOI: 10.1007/s00705-016-3063-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/12/2016] [Indexed: 01/09/2023]
Abstract
Southwestern Alberta is a region of Canada that has high rates of enteritis as well as high densities of livestock. The presence of enteric RNA viruses, specifically norovirus (NoV) GI, GII, GIII, GIV; sapovirus (SaV); rotavirus (RV); and astrovirus (AstV), was evaluated in stools from diarrheic (n = 2281) and non-diarrheic (n = 173) people over a 1-year period in 2008 and 2009. Diarrheic individuals lived in rural (46.6 %) and urban (53.4 %) settings and ranged in age from less than 1 month to 102 years, and the highest prevalence of infection in these individuals was in November. In all, viruses were detected in diarrheic stools from 388 individuals (17.0 %). NoV GII was the most frequently detected virus (8.0 %; n = 182) followed by SaV (4.3 %; n = 97), RV (2.0 %; n = 46), AstV (1.8 %; n = 42), NoV GI (0.9 %; n = 20), and NoV GIV (0.1 %; n = 1). Animal NoV GIII was never detected. The prevalence of mixed viral infections in diarrheic individuals was 2.8 % (n = 11). Children from 1 to 5 years of age accounted for the highest prevalence of positive stools, followed by the elderly individuals (≥70 years). Only NoV GII (1.2 %; n = 2) and SaV (1.2 %; n = 2) were detected in stools from non-diarrheic people. Sequence analysis of a subset of stools revealed homology to NoV, SaV and RV sequences from humans but not to strains from non-human animals. The results of this study do not support the hypothesis that viruses of animal origin have a significant impact on the occurrence of acute gastroenteritis caused by RNA enteric viruses in people living in southwestern Alberta.
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Gervasi G, Capanna A, Mita V, Zaratti L, Franco E. Nosocomial rotavirus infection: An up to date evaluation of European studies. Hum Vaccin Immunother 2016; 12:2413-8. [PMID: 27185183 PMCID: PMC5027725 DOI: 10.1080/21645515.2016.1183858] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Rotavirus (RV) is worldwide considered as the most important viral agent of acute gastroenteritis in children less than 5 y. Since 2006, the availability of anti-RV vaccines has deeply modified the incidence and economic burden of RV infection. In Europe, some countries have introduced an anti-RV vaccination program in the last 10 y. Although community acquired RV (CARV) disease is the most studied condition of RV infection, recently some authors have highlighted the importance of nosocomial RV (nRV) disease as an emerging public health issue. The aim of this review is to summarize the epidemiology of both CARV and nRV, in order to discuss the difficulty of a clear evaluation of the burden of the disease in absence of comparable data. In particular, we focused our attention to European studies regarding nRV in terms of divergences related to definition, report of incidence rate and methodological issues.
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Affiliation(s)
- G Gervasi
- a Specialization School for Hygiene and Preventive Medicine , University of Rome Tor Vergata , Rome , Italy
| | - A Capanna
- a Specialization School for Hygiene and Preventive Medicine , University of Rome Tor Vergata , Rome , Italy
| | - V Mita
- b Department of Biomedicine and Prevention , University of Rome Tor Vergata , Rome , Italy
| | - L Zaratti
- b Department of Biomedicine and Prevention , University of Rome Tor Vergata , Rome , Italy
| | - E Franco
- b Department of Biomedicine and Prevention , University of Rome Tor Vergata , Rome , Italy
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Kim JS, Kim HS, Hyun J, Kim HS, Song W, Lee KM, Shin SH. Analysis of rotavirus genotypes in Korea during 2013: an increase in the G2P[4] genotype after the introduction of rotavirus vaccines. Vaccine 2014; 32:6396-402. [PMID: 25312273 DOI: 10.1016/j.vaccine.2014.09.067] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 09/18/2014] [Accepted: 09/29/2014] [Indexed: 01/15/2023]
Abstract
BACKGROUND Group A rotavirus is the leading cause of acute gastroenteritis in children worldwide. We investigated G and P genotypes of group A rotavirus strains isolated from patients during 2013 and investigated which genotypes were identified from vaccinated patients. METHODS From January to December 2013, 2235 fecal specimens were tested for rotavirus antigen, of which 374 specimens (16.7%) showed positive results. Strains from 288 rotavirus-positive specimens were genotyped using PCR and sequencing, and individual patients' corresponding vaccine histories were investigated through the Korean Center for Disease Control website. RESULTS G2 (22.6%) and P[4] (24.0%) were the most frequently identified G and P genotypes, respectively; accordingly, G2P[4] (19.8%) was the most prevalent G/P genotype observed in this period. G4P[6] (10.1%) was the second most prevalent G/P genotype and was mostly detected in neonates. Other genotypes, G1P[8], G9P[8], G1P[6], and G3P[6], were also detected. Of 288 rotavirus-positive specimens, 48 specimens were obtained from previously vaccinated patients. G2P[4] was also the genotype most frequently isolated from vaccinated patients. VP7 epitope analysis of G1P[8] and G2P[4] strains showed at least one amino acid differences in comparison with Rotarix and RotaTeq vaccine strains. The genotypic distribution of rotavirus strains in Korea has been shown temporal and geographical differences. CONCLUSION This study showed that G2P[4] was the genotype most frequently isolated from both vaccinated and unvaccinated patients in Korea during 2013. However, it is unclear whether the change of predominant genotype is due to the effect of vaccination or due to natural variation.
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Affiliation(s)
- Jae-Seok Kim
- Department of Laboratory Medicine, Hallym University College of Medicine, Republic of Korea
| | - Hyun Soo Kim
- Department of Laboratory Medicine, Hallym University College of Medicine, Republic of Korea.
| | - Jungwon Hyun
- Department of Laboratory Medicine, Hallym University College of Medicine, Republic of Korea
| | - Han-Sung Kim
- Department of Laboratory Medicine, Hallym University College of Medicine, Republic of Korea
| | - Wonkeun Song
- Department of Laboratory Medicine, Hallym University College of Medicine, Republic of Korea
| | - Kyu Man Lee
- Department of Laboratory Medicine, Hallym University College of Medicine, Republic of Korea
| | - Seon-Hee Shin
- Department of Pediatrics, Hallym University College of Medicine, Republic of Korea
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Semeiko GV, Yermalovich MA, Poliakova N, Mijatovic-Rustempasic S, Kerin TK, Wasley A, Videbaek D, Gentsch JR, Bowen MD, Samoilovich EO. Rotavirus genotypes in Belarus, 2008-2012. INFECTION GENETICS AND EVOLUTION 2014; 28:480-5. [PMID: 25218086 DOI: 10.1016/j.meegid.2014.09.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 08/21/2014] [Accepted: 09/03/2014] [Indexed: 12/19/2022]
Abstract
This study describes group A rotavirus (RVA) genotype prevalence in Belarus from 2008 to 2012. In 2008, data from 3 sites in Belarus (Brest, Mogilev, Minsk) indicated that G4P[8] was the predominant genotype. Data from Minsk (2008-2012) showed that G4P[8] was the predominant RVA genotype in all years except in 2011 when G3P[8] was most frequently detected. Other RVA genotypes common in Europe (G1P[8], G2P[4]) were detected each year of the study. This study reveals the dominance of genotype G4P[8] in Belarus and helps to establish the baseline genotype prevalence prior to RVA vaccine introduction in the country.
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Affiliation(s)
- Galina V Semeiko
- Republican Research and Practical Center for Epidemiology and Microbiology, Minsk, Belarus
| | - Marina A Yermalovich
- Republican Research and Practical Center for Epidemiology and Microbiology, Minsk, Belarus
| | - Nadezhda Poliakova
- Republican Research and Practical Center for Epidemiology and Microbiology, Minsk, Belarus
| | - Slavica Mijatovic-Rustempasic
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Tara K Kerin
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Annemarie Wasley
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | - Dovile Videbaek
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | - Jon R Gentsch
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Michael D Bowen
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - Elena O Samoilovich
- Republican Research and Practical Center for Epidemiology and Microbiology, Minsk, Belarus
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Review of global rotavirus strain prevalence data from six years post vaccine licensure surveillance: is there evidence of strain selection from vaccine pressure? INFECTION GENETICS AND EVOLUTION 2014; 28:446-61. [PMID: 25224179 DOI: 10.1016/j.meegid.2014.08.017] [Citation(s) in RCA: 168] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 08/13/2014] [Accepted: 08/14/2014] [Indexed: 11/23/2022]
Abstract
Comprehensive reviews of pre licensure rotavirus strain prevalence data indicated the global importance of six rotavirus genotypes, G1P[8], G2P[4], G3P[8], G4P[8], G9P[8] and G12P[8]. Since 2006, two vaccines, the monovalent Rotarix (RV1) and the pentavalent RotaTeq (RV5) have been available in over 100 countries worldwide. Of these, 60 countries have already introduced either RV1 or RV5 in their national immunization programs. Post licensure vaccine effectiveness is closely monitored worldwide. This review aimed at describing the global changes in rotavirus strain prevalence over time. The genotype distribution of the nearly 47,000 strains that were characterized during 2007-2012 showed similar picture to that seen in the preceding period. An intriguing finding was the transient predominance of heterotypic strains, mainly in countries using RV1. Unusual and novel antigen combinations continue to emerge, including some causing local outbreaks, even in vaccinated populations. In addition, vaccine strains have been found in both vaccinated infants and their contacts and there is evidence for genetic interaction between vaccine and wild-type strains. In conclusion, the post-vaccine introduction strain prevalence data do not show any consistent pattern indicative of selection pressure resulting from vaccine use, although the increased detection rate of heterotypic G2P[4] strains in some countries following RV1 vaccination is unusual and this issue requires further monitoring.
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Lactase persistence and augmented salivary alpha-amylase gene copy numbers might have been selected by the combined toxic effects of gluten and (food born) pathogens. Med Hypotheses 2014; 82:326-34. [PMID: 24472865 DOI: 10.1016/j.mehy.2013.12.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 12/02/2013] [Accepted: 12/24/2013] [Indexed: 12/26/2022]
Abstract
Various positively selected adaptations to new nutrients have been identified. Lactase persistence is among the best known, conferring the ability for drinking milk at post weaning age. An augmented number of amylase gene (AMY1) copies, giving rise to higher salivary amylase activity, has been implicated in the consumption of starch-rich foods. Higher AMY1 copy numbers have been demonstrated in populations with recent histories of starchy-rich diets. It is however questionable whether the resulting polymorphisms have exerted positive selection only by providing easily available sources of macro and micronutrients. Humans have explored new environments more than any other animal. Novel environments challenge the host, but especially its immune system with new climatic conditions, food and especially pathogens. With the advent of the agricultural revolution and the concurrent domestication of cattle came new pathogens. We contend that specific new food ingredients (e.g., gluten) and novel pathogens drove selection for lactase persistence and higher AMY gene copy numbers. Both adaptations provide ample glucose for activating the sodium glucose-dependent co-transporter 1 (SGLT1), which is the principal glucose, sodium and water transporter in the gastro-intestinal tract. Their rapid uptake confers protection against potentially lethal dehydration, hyponatremia and ultimately multiple organ failure. Oral rehydration therapy aims at SGLT1 activity and is the current treatment of choice for chronic diarrhoea and vomiting. We hypothesize that lifelong lactase activity and rapid starch digestion should be looked at as the evolutionary covalent of oral rehydration therapy.
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Matthijnssens J, Nakagomi O, Kirkwood CD, Ciarlet M, Desselberger U, Van Ranst M. Group A rotavirus universal mass vaccination: how and to what extent will selective pressure influence prevalence of rotavirus genotypes? Expert Rev Vaccines 2013; 11:1347-54. [PMID: 23249234 DOI: 10.1586/erv.12.105] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Two human group A rotavirus (RVA) vaccines are available and highly effective in preventing severe gastroenteritis caused by all commonly circulating human RVA genotypes. The effect of universal mass vaccination on the RVA genotype distribution is discussed based on the knowledge of complete RVA genotype constellations, data from clinical efficacy trials and effectiveness studies, and genotype surveillance data from countries with universal mass vaccination programs. The theoretically predicted relative enrichment of RVA strains with the G2P[4] DS-1-like genotype constellation in regions with high coverage by Rotarix(®) (GlaxoSmithKline Biologicals, Rixensart, Belgium) seems to become apparent. A G3P[8] genotype increase, which was noted in several regions with a high coverage of RotaTeq(®) (Merck and Co., Inc., NJ, USA), is more difficult to explain based on the theoretical considerations.
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Affiliation(s)
- Jelle Matthijnssens
- Laboratory of Clinical and Epidemiological Virology, Department of Microbiology and Immunology, Rega Institute for Medical Research, University of Leuven, Leuven, Belgium
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Kaplon J, Fremy C, Bernard S, Rehby L, Aho S, Pothier P, Ambert-Balay K. Impact of rotavirus vaccine on rotavirus genotypes and caliciviruses circulating in French cattle. Vaccine 2013; 31:2433-40. [PMID: 23579256 PMCID: PMC7127096 DOI: 10.1016/j.vaccine.2013.03.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 03/19/2013] [Accepted: 03/24/2013] [Indexed: 11/28/2022]
Abstract
Rotavirus genotype distribution was not different in vaccinated and non-vaccinated herds. G6, P[5] and G6P[5] genotypes predominated in both groups. No selection of rotavirus genotypes associated with the use of vaccine was observed. Calicivirus prevalence was similar in calves from vaccinated and non-vaccinated herds.
Group A rotaviruses are a leading cause of neonatal calf diarrhoea worldwide and prevention of this disease includes vaccination against these viruses. In order to highlight the potential selection of rotavirus genotypes due to immune pressure driven by vaccination, the aim of this study was to compare group A rotavirus genotypes circulating in French diarrhoeic calves in rotavirus vaccinated herds (G6P[5] vaccine) with those in non-vaccinated herds during one calving season in 2010. This study showed a high prevalence of rotavirus in both groups with no significant difference between the two. No significant differences regarding G, P and G/P rotavirus genotype distribution between the two groups were observed, with G6, P[5] and G6P[5] genotypes being by far the most prevalent. Moreover, sequence analyses of the VP7 and VP4 partial coding genes of the G6P[5] strains from this study did not allow us to distinguish them according to their origin. This study also showed that other pathogens responsible for calf diarrhoea, such as genogroup III noroviruses and neboviruses, were not more frequently associated with calf diarrhoea in vaccinated herds. Altogether, these results suggest that the studied vaccine did not promote the emergence of rotavirus genotypes or variants different from those of the vaccine or other viruses responsible for calf diarrhoea, such as caliciviruses.
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Affiliation(s)
- Jérôme Kaplon
- National Reference Centre for Enteric Viruses, Laboratory of Virology, University Hospital of Dijon, 2 rue Angélique Ducoudray, 21070 Dijon, France.
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Trojnar E, Sachsenröder J, Twardziok S, Reetz J, Otto PH, Johne R. Identification of an avian group A rotavirus containing a novel VP4 gene with a close relationship to those of mammalian rotaviruses. J Gen Virol 2013; 94:136-142. [DOI: 10.1099/vir.0.047381-0] [Citation(s) in RCA: 228] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Group A rotaviruses (RVAs) are an important cause of diarrhoeal illness in humans, as well as in mammalian and avian animal species. Previous sequence analyses indicated that avian RVAs are related only distantly to mammalian RVAs. Here, the complete genomes of RVA strain 03V0002E10 from turkey (Meleagris gallopavo) and RVA strain 10V0112H5 from pheasant (Phasianus colchicus) were analysed using a combination of 454 deep sequencing and Sanger sequencing technologies. An adenine-rich insertion similar to that found in the chicken RVA strain 02V0002G3, but considerably shorter, was found in the 3′ NCR of the NSP1 gene of the pheasant strain. Most genome segments of both strains were related closely to those of avian RVAs. The novel genotype N10 was assigned to the NSP2 gene of the pheasant RVA, which is related most closely to genotype N6 found in avian RVAs. However, this virus contains a VP4 gene of the novel genotype P[37], which is related most closely to RVAs from pigs, dogs and humans. This strain either may represent an avian/mammalian rotavirus reassortant, or it carries an unusual avian rotavirus VP4 gene, thereby broadening the potential genetic and antigenic variability among RVAs.
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Affiliation(s)
- Eva Trojnar
- Federal Institute for Risk Assessment, Max-Dohrn Straße 8-10, 10589 Berlin, Germany
- Free University Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Jana Sachsenröder
- Federal Institute for Risk Assessment, Max-Dohrn Straße 8-10, 10589 Berlin, Germany
- Free University Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Sven Twardziok
- Institute for Molecular Biology and Bioinformatic, Charite, Arnimallee 22, 14195 Berlin, Germany
| | - Jochen Reetz
- Federal Institute for Risk Assessment, Max-Dohrn Straße 8-10, 10589 Berlin, Germany
| | - Peter H. Otto
- Friedrich Loeffler Institute, Institute for Bacterial Infections and Zoonoses, Naumburger Straße 96a, 07743 Jena, Germany
| | - Reimar Johne
- Federal Institute for Risk Assessment, Max-Dohrn Straße 8-10, 10589 Berlin, Germany
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