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Shin DY, Yi DY, Jo S, Lee YM, Kim JH, Kim W, Park MR, Yoon SM, Kim Y, Yang S, Lim IS. Effect of a new Lactobacillus plantarum product, LRCC5310, on clinical symptoms and virus reduction in children with rotaviral enteritis. Medicine (Baltimore) 2020; 99:e22192. [PMID: 32957348 PMCID: PMC7505315 DOI: 10.1097/md.0000000000022192] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Rotavirus is one of the most common causes of infantile enteritis. In common enterocolitis, probiotic organisms, including Lactobacilli, are effective in treating diarrhea. A new species, Lactobacillus plantarum (LRCC5310), which was shown to inhibit the adherence and proliferation of rotavirus in the small intestine through animal experiments, was investigated for the efficacy and safety of patients with rotaviral enteritis. METHODS LRCC5310 (Group I) and control (Group II) groups consisting of children who were hospitalized for rotaviral enteritis were compared, and the medical records of patients (Group III) who were hospitalized for rotaviral enteritis during the same study period were retrospectively analyzed. Clinical symptoms were compared and stool samples were collected to compare changes in virus multiplication between Groups I and II. RESULTS Groups I, II, and III comprised 15, 8, and 27 children, respectively. There were no differences in clinical information among the groups at admission. In Group I, a statistically significant improvement was noted in the number of patients with diarrhea, number of defecation events on Day 3, and total diarrhea period as opposed to Group II (P = .033, P = .003, and P = .012, respectively). The improvement of Vesikari score in Group I was greater than that in the other groups (P = .076, P = .061, and P = .036, respectively). Among rotavirus genotypes, 9 (22.5%) strains and 8 (20.0%) strains belonged to the G9P8 and G1P8 genotypes, respectively. The virus reduction effect, as confirmed via stool specimens, was also greater in Group I. No significant side effects were noted in infants. CONCLUSION LRCC5310 improved clinical symptoms, including diarrhea and Vesikari score, and inhibited viral proliferation in rotaviral gastroenteritis.
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Affiliation(s)
- Do Young Shin
- Department of Pediatrics, Chung-Ang University Hospital
| | - Dae Yong Yi
- Department of Pediatrics, Chung-Ang University Hospital
- College of Medicine, Chung-Ang University, Seoul
| | - Soojin Jo
- Department of Pediatrics, Chung-Ang University Hospital
| | - Yoo Min Lee
- Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Bucheon
| | - Jong-Hwa Kim
- Department of Microbiology, Chung-Ang University College of Medicine
| | - Wonyong Kim
- Department of Microbiology, Chung-Ang University College of Medicine
| | - Mi ri Park
- Lotte R&D Center, Seoul, Republic of Korea
| | | | - Yunsik Kim
- Lotte R&D Center, Seoul, Republic of Korea
| | | | - In Seok Lim
- Department of Pediatrics, Chung-Ang University Hospital
- College of Medicine, Chung-Ang University, Seoul
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Kim JS, Kim SM, Kim HS. High Prevalence of Rotavirus G4P[6] Genotypes among Neonates in Two Korean Hospitals. ANNALS OF CLINICAL MICROBIOLOGY 2017. [DOI: 10.5145/acm.2017.20.3.63] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Jae-Seok Kim
- Department of Laboratory Medicine, Hallym University College of Medicine, Hwaseong, Korea
| | - Sung Mi Kim
- Department of Pediatrics, Busan Saint Mary Hospital, Busan, Korea
| | - Hyun Soo Kim
- Department of Laboratory Medicine, Hallym University College of Medicine, Hwaseong, Korea
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Jeong S, Than VT, Lim I, Kim W. Differentiation of RotaTeq ® vaccine strains from wild-type strains using NSP3 gene in reverse transcription polymerase chain reaction assay. J Virol Methods 2016; 237:72-78. [DOI: 10.1016/j.jviromet.2016.08.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 07/23/2016] [Accepted: 08/30/2016] [Indexed: 10/21/2022]
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Mun SK, Cho HG, Lee HK, Park SH, Park PH, Yoon MH, Jeong HS, Lim YH. High incidence of group A rotaviruses G4P[6] strains among children in Gyeonggi province of South Korea, from 2009 to 2012. INFECTION GENETICS AND EVOLUTION 2016; 44:351-355. [PMID: 27480917 DOI: 10.1016/j.meegid.2016.07.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 06/27/2016] [Accepted: 07/28/2016] [Indexed: 02/06/2023]
Abstract
The genotype distribution of group A rotaviruses (RVAs) circulating in Gyeonggi province, South Korea between 2009 and 2012 was investigated. A total of 2619 stool specimens from sporadic acute gastroenteritis cases and 117 acute gastroenteritis outbreaks were analyzed. Among them, RVAs were detected from 263 (10.0%) sporadic cases and 3 (2.6%) outbreaks. The G4P[6] strains predominated (29.7%), followed by G1P[8] (19.4%), G2P[4] (15.6%), G3P[8] (13.3%) and G9P[8] (6.5%) strain. Especially 96.2% of the genotype G4P[6] strains were isolated from children<1year of age. Phylogenetic analysis revealed that genotype G4P[6] strains were members of sub-lineage Ie(G4) and Ia(P[6]). Intensified monitoring of RVAs, especially G4P[6] strains among young children, is essential to control RVA infections.
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Affiliation(s)
- Su-Kyoung Mun
- Division of Public Health Research, Gyeonggi Province Institute of Health and Environment, Suwon, South Korea
| | - Han-Gil Cho
- Division of Public Health Research, Gyeonggi Province Institute of Health and Environment, Suwon, South Korea
| | - Hyun-Kyung Lee
- Division of Public Health Research, Gyeonggi Province Institute of Health and Environment, Suwon, South Korea
| | - Sin-Hee Park
- Division of Public Health Research, Gyeonggi Province Institute of Health and Environment, Suwon, South Korea
| | - Po-Hyun Park
- Division of Public Health Research, Gyeonggi Province Institute of Health and Environment, Suwon, South Korea
| | - Mi-Hye Yoon
- Division of Public Health Research, Gyeonggi Province Institute of Health and Environment, Suwon, South Korea
| | - Hye-Sook Jeong
- Division of Vaccine Research, Center for Infectious Diseases, National Institute of Health, Korea Centers for Disease Control & Prevention, Chungcheongbuk-do, South Korea
| | - Young-Hee Lim
- Department of Public Health Science, Graduate School, Korea University, Seoul, South Korea; Department of Laboratory Medicine, Korea University Guro Hospital, Seoul, South Korea.
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Changing distribution of age, clinical severity, and genotypes of rotavirus gastroenteritis in hospitalized children after the introduction of vaccination: a single center study in Seoul between 2011 and 2014. BMC Infect Dis 2016; 16:287. [PMID: 27296987 PMCID: PMC4906974 DOI: 10.1186/s12879-016-1623-y] [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] [Received: 01/29/2016] [Accepted: 06/04/2016] [Indexed: 01/07/2023] Open
Abstract
Background This study aimed to explore changes in clinical epidemiology and genotype distribution and their association among hospitalized children with rotavirus gastroenteritis after the introduction of vaccines. Methods Between November 2010 and October 2014, hospitalized children with acute gastroenteritis were enrolled. Rotavirus genotypes were confirmed through reverse transcription-polymerase chain reaction (RT-PCR), semi-nested PCR, and sequencing. Clinical information including vaccination status and the modified Vesikari scores were collected. Results Among 179 children with rotavirus infection, nineteen (10.6 %) were completely vaccinated. During the study period, the number of children between three and 23 months of age decreased significantly compared to the number of children older than 24 months of age (P = 0.010), who showed lower diarrhea severity (duration, P = 0.042; frequency, P = 0.021) but higher vomiting severity (P = 0.007, 0.036) compared to the former. Vaccination status was also significantly associated with lower vomiting severity after adjustment for age (frequency only, P = 0.018). The predominant genotypes were G2P[4] (18.4 %), G1P[8] (14.5 %), and G1P[4]P[8] (12.8 %), and the prevalence of genotypes with uncommon and mixed combinations was more than 50 %. Children infected with G2P[4] strains tended to be older (P = 0.005) and had more severe vomiting (P = 0.018, 0.006) than those with G1P[8]. Conclusions Increase in age of infected, hospitalized children was accompanied by change in clinical severity during 2011–2014 after the introduction of vaccines in Seoul. Clinical severity was also associated with vaccination status and genotype. Long-term large scale studies are needed to document the significance of the increase in genotypes of uncommon and mixed combinations. Electronic supplementary material The online version of this article (doi:10.1186/s12879-016-1623-y) contains supplementary material, which is available to authorized users.
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Evidence of multiple reassortment events of feline-to-human rotaviruses based on a rare human G3P[9] rotavirus isolated from a patient with acute gastroenteritis. Comp Immunol Microbiol Infect Dis 2016; 46:53-9. [DOI: 10.1016/j.cimid.2016.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 04/11/2016] [Accepted: 04/12/2016] [Indexed: 12/11/2022]
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Jalilvand S, Afchangi A, Mohajel N, Roohvand F, Shoja Z. Diversity of VP7 genes of G1 rotaviruses isolated in Iran, 2009–2013. INFECTION GENETICS AND EVOLUTION 2016; 37:275-9. [DOI: 10.1016/j.meegid.2015.09.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 09/26/2015] [Accepted: 09/28/2015] [Indexed: 10/23/2022]
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Koukou D, Chatzichristou P, Trimis G, Siahanidou T, Skiathitou AV, Koutouzis EI, Syrogiannopoulos GA, Lourida A, Michos AG, Syriopoulou VP. Rotavirus Gastroenteritis in a Neonatal Unit of a Greek Tertiary Hospital: Clinical Characteristics and Genotypes. PLoS One 2015. [PMID: 26214830 PMCID: PMC4516237 DOI: 10.1371/journal.pone.0133891] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Rotavirus (RV) infection in neonatal age can be mild or even asymptomatic. Several studies have reported that RV is responsible for 31%-87% of pediatric nosocomial diarrhea and causes gastroenteritis outbreaks in pediatric and neonatal units. OBJECTIVES Study clinical characteristics, genotypes and risk factors of RV infection in neonatal age. METHODS A prospective study was conducted from April 2009 till April 2013 in the neonatal special care unit of the largest tertiary pediatric hospital of Greece. Fecal samples and epidemiological data were collected from each neonate with gastrointestinal symptoms. RV antigen was detected with a rapid immunochromatography test. RV positive samples were further genotyped with RT PCR and sequencing using specific VP7 and VP4 primers. RESULTS Positive for RV were 126/415 samples (30.4%). Mean age of onset was 18 days. Seventy four cases (58%) were hospital acquired. Seasonality of RV infection did not differ significantly throughout the year with the exception of 4 outbreaks. Genotypes found during the study period were G4P[8] (58.7%), G1P[8] (14.7%), G12P[8] (9.3%), G3P[8] (9.3%), G12P[6] (5.3%), G9P[8] (1.3%) and G2P[4] (1.3%). RV cases presented with: diarrhea (81%), vomiting (26.2%), fever (34.9%), dehydration (28.6%), feeding intolerance (39.7%), weight loss (54%), whilst 19% of cases were asymptomatic. Comparing community with hospital acquired cases differences in clinical manifestations were found. CONCLUSIONS Significant incidence of nosocomially transmitted RV infection in neonatal age including asymptomatic illness exists. Genotypes causing nosocomial outbreaks are not different from community strains. Circulating vaccines can be effective in prevention of nosocomial RV infection through herd immunity.
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Affiliation(s)
- Dimitra Koukou
- First Department of Pediatrics, Athens University, “Aghia Sophia” Children’s Hospital, Athens, Greece
| | - Panagiota Chatzichristou
- First Department of Pediatrics, Athens University, “Aghia Sophia” Children’s Hospital, Athens, Greece
| | | | - Tania Siahanidou
- First Department of Pediatrics, Athens University, “Aghia Sophia” Children’s Hospital, Athens, Greece
| | - Anna-Venetia Skiathitou
- First Department of Pediatrics, Athens University, “Aghia Sophia” Children’s Hospital, Athens, Greece
| | | | - George A. Syrogiannopoulos
- Department of Pediatrics, University of Thessaly, General University Hospital of Larissa, Larissa, Greece
| | - Athanasia Lourida
- First Department of Pediatrics, Athens University, “Aghia Sophia” Children’s Hospital, Athens, Greece
| | - Athanasios G. Michos
- First Department of Pediatrics, Athens University, “Aghia Sophia” Children’s Hospital, Athens, Greece
| | - Vassiliki P. Syriopoulou
- First Department of Pediatrics, Athens University, “Aghia Sophia” Children’s Hospital, Athens, Greece
- * E-mail:
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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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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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Than VT, Jeong S, Kim W. A systematic review of genetic diversity of human rotavirus circulating in South Korea. INFECTION GENETICS AND EVOLUTION 2014; 28:462-9. [PMID: 25218045 DOI: 10.1016/j.meegid.2014.08.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/15/2014] [Accepted: 08/19/2014] [Indexed: 11/16/2022]
Abstract
Rotavirus infections continue to be the leading cause of severe diarrhea in young Korean children. Rotavirus data acquired from uninterrupted surveillance studies between 1989 and 2009 in South Korea were analyzed to better understand the genetic diversity and evolution. The relationship between rotaviruses and the currently licensed rotavirus vaccine viruses was also examined. The most prevalent rotavirus strains, with genotype G1P[8], followed by G3P[8], G4P[6], and G2P[4], accounted for approximately 76.7% of the total identified strains, and more recently, rotavirus G9P[8] has significance increased to be the fifth most common genotype. Phylogenetic analyses underscored the heterogeneity between viral populations within each genotype, with different lineages and sub-lineages. Although the currently licensed rotavirus vaccines are effective, safe, and economical, additional data from rotavirus monitoring is necessary to evaluate the efficacy of these vaccines for their sustained use in South Korea. The present study provides comprehensive and up-to-date information regarding the epidemiology, genetic diversity, and evolution of the circulating rotaviruses in South Korea.
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Affiliation(s)
- Van Thai Than
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Sunyoung Jeong
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Wonyong Kim
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul, South Korea.
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Than VT, Kim W. Prevalence of rotavirus genotypes in South Korea in 1989-2009: implications for a nationwide rotavirus vaccine program. KOREAN JOURNAL OF PEDIATRICS 2013; 56:465-73. [PMID: 24348658 PMCID: PMC3859878 DOI: 10.3345/kjp.2013.56.11.465] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 08/18/2013] [Indexed: 01/12/2023]
Abstract
The epidemiology of human group A rotavirus was analyzed by examining genotypic data acquired from 1989 to 2009 in South Korea. This information was derived from all the available published articles on rotavirus studies in South Korea, retrieved from both the PubMed and KoreaMed databases. Four common G types (G1, G2, G3, and G4) and three common P types (P[8], P[4], and P[6]) accounted for approximately 93% and 99% of the rotavirus reports, respectively. The G9 type was frequently detected after 2000, and because of this prevalence, it is considered to be the fifth most important G type rotavirus after the G1.G4 genotypes. Less common G types of the virus such as G12, G11, and G10 were detected in some geographic settings, and it is important to consider the context of these subtypes and their epidemiological significance. The P[9] virus genotype was observed in the study and has been discussed in many other studies; however, the P[3], P[10] and P[25] genotypes were rarely detected in the epidemiological research. In general, the distributions of the G and P genotypes showed temporal and geographical fluctuations, and a nationwide rotavirus vaccine program that targeted these genotypes demonstrated effectiveness in protecting against the circulating rotavirus strains. However, further analysis is needed to determine the true long-term effectiveness of these vaccines; the analysis should also consider the unexpected effects of vaccinations, such as vaccine-induced diseases, herd immunity, and changes in host susceptibilities.
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Affiliation(s)
- Van Thai Than
- Department of Microbiology, Research Center for Medical Sciences, Chung-Ang University College of Medicine, Seoul, Korea
| | - Wonyong Kim
- Department of Microbiology, Research Center for Medical Sciences, Chung-Ang University College of Medicine, Seoul, Korea
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Than VT, Baek IH, Kim W. Whole genomic analysis reveals the co-evolutionary phylodynamics of Korean G9P[8] human rotavirus strains. Arch Virol 2013; 158:1795-803. [DOI: 10.1007/s00705-013-1662-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2012] [Accepted: 02/04/2013] [Indexed: 12/14/2022]
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Zhirakovskaya EV, Aksanova RK, Gorbunova MG, Tikunov AY, Kurilshchikov AM, Sokolov SN, Netesov SV, Tikunova NV. Genetic diversity of group a rotavirus isolates found in Western Siberia in 2007–2011. MOLECULAR GENETICS MICROBIOLOGY AND VIROLOGY 2012. [DOI: 10.3103/s0891416812040076] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Than VT, Kang H, Lim I, Kim W. Molecular characterization of serotype G9 rotaviruses circulating in South Korea between 2005 and 2010. J Med Virol 2012; 85:171-8. [DOI: 10.1002/jmv.23436] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Iftikhar T, Butt A, Nawaz K, Sarwar Y, Ali A, Mustafa T, Haque A. Genotyping of rotaviruses detected in children admitted to hospital from Faisalabad Region, Pakistan. J Med Virol 2012; 84:2003-7. [DOI: 10.1002/jmv.23402] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kargar M, Jafarpour T, Najafi A. Burden and typing of rotavirus group a in children with acute gastroenteritis in shiraz, southern iran. IRANIAN RED CRESCENT MEDICAL JOURNAL 2012; 14:531-40. [PMID: 23115715 PMCID: PMC3482325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2011] [Accepted: 02/20/2012] [Indexed: 11/07/2022]
Abstract
BACKGROUND Human Rotavirus is a significant cause of severe gastroenteritis in infants and young children worldwide. In recent years, Rotavirus genotyping by RT-PCR has provided valuable information about the diversity of Rotaviruses circulating worldwide. The purpose of the present study is to monitor the prevalence of the different G types of Rotaviruses circulating in Shiraz, Southern Iran and detect any uncommon or novel types. METHODS During the period from December 2007 to November 2008, a total of 138 stool samples were collected from children less than 5 years old who were hospitalized for acute gastroenteritis. Rotavirus-associated diarrhea was investigated in fecal specimens with enzyme immunoassays (EIA). Rotavirus-positive specimens were typed by the Nested RT-PCR and by using different types of specific primers. RESULTS Out of the 138 collected samples, 34.78% (48 cases) tested positive for Rotavirus. The frequency of G1, G2 and G4 types was 6.25%, 2.08% and 27.08%, respectively. Mixed and non-typeable infections were detected in 33.34% and 31.25% of hospitalized children with acute diarrhea, respectively. This is the first time mixed Rotavirus infections with G1/G3 have been reported in Iran. CONCLUSION The high frequency of Rotavirus detection indicates the severity and the burden of Rotavirus disease may be able to reduce through the implementation of an effective vaccine and continual surveillance for the detection of Rotavirus genotypes circulating in other regions of Iran. Regarding to the noticeable frequency of non-typeable and mixed infections, it is suggested to use the other specific primers and further studies to detection of other novel and unusual types.
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Affiliation(s)
- M Kargar
- Associate Professor of Microbiology, Department of Microbiology, Jahrom Branch, Islamic Azad University, Jahrom, IR Iran ,Correspondence: Mohammad Kargar, PhD, Associate Professor of Department of Microbiology, Jahrom Branch, Islamic Azad University, Jahrom, IR Iran. Tel.: +98 917 3149203, Fax: +98 711 6476101, E-mail:
| | - T Jafarpour
- Master science of Microbiology, Department of Microbiology, Jahrom Branch, Islamic Azad University, Jahrom, IR Iran
| | - A Najafi
- Master science of Microbiology, Department of Microbiology, Jahrom Branch, Islamic Azad University, Jahrom, IR Iran
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Tatte VS, Chitambar SD. Diversity in the VP7 encoding genes of rotavirus strains isolated from adolescent and adult cases of acute gastroenteritis. J Med Virol 2012; 84:1481-8. [DOI: 10.1002/jmv.23311] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Shim JO, Baek IH, Le VP, Ko EM, Seok WS, Uh Y, Kim JK, Ahn SY, Lee HS, Ryoo E, Shim SY, Song W, Lim I, Kim W. Molecular characterization of rotavirus diarrhea among children in South Korea: detection of an unusual G11 strain. Arch Virol 2011; 156:887-92. [PMID: 21234769 DOI: 10.1007/s00705-010-0911-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Accepted: 12/30/2010] [Indexed: 10/18/2022]
Abstract
Among 312 rotavirus-positive samples collected from eight hospitals across South Korea during 2008 and 2009, the most prevalent circulating G genotype was G1 (35.9%), followed by G3 (24.7%), G2 (17.0%), G4 (7.7%), and G9 (2.6%). Notably, one unusual G11 lineage III strain-the first hypoendemic infection case in the world-was found. Of the P genotypes, P[8] (43.9%) was the most common, followed by P[6] (29.5%), P[4] (9.3%) and P[9] (0.6%). Determining G- and P-type combinations showed that G1P[8] was the most prevalent (20.5%), followed by G2P[6] (12.8%) and G3P[8] (12.8%). These findings provide new information concerning the current prevalence and spread of the rare G11 rotavirus.
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Affiliation(s)
- Jung Ok Shim
- Department of Pediatrics, Kangwon National University School of Medicine, Chuncheon, Korea
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Han TH, Kim CH, Chung JY, Park SH, Hwang ES. Genetic characterization of rotavirus in children in South Korea from 2007 to 2009. Arch Virol 2010; 155:1663-73. [PMID: 20625775 DOI: 10.1007/s00705-010-0752-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Accepted: 07/05/2010] [Indexed: 01/14/2023]
Abstract
Rotavirus is the most important etiological agent in children with acute gastroenteritis (AGE). The recent implementation of a rotavirus vaccine in Korea requires the monitoring of prevailing rotavirus strains in order to control the infection. One hundred thirty-nine rotavirus strains were detected in children hospitalized with AGE in Seoul, Korea from 2007 to 2009. The most frequent combination of genotypes was G9P[8] (32.1%), followed by G1P[8] (20.7%) and G3P[8] (11.7%). Mixed G-types were detected in 14 samples (10.0%), and mixed P-types were found in six samples (4.3%). G9 genotypes were predominant from 2007 to 2008, whereas G1 and G3 genotypes were predominant from 2008 to 2009. G1 strains clustered mostly in the Id lineage, and some clustered in the Ic, IId, and Ia lineages. G2 strains clustered in the IV and V lineages. G3 and G9 strains clustered in the IIId and Id lineages, respectively. This study shows a rapid change of the prevalent genotype from G9 to G1 and G3 genotypes, suggesting that continuous surveillance of rotavirus strains is important for rotavirus vaccination.
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Affiliation(s)
- Tae-Hee Han
- Department of Laboratory Medicine, Sanggyepaik Hospital, Inje University College of Medicine, Seoul, Korea
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