Osong Public Health and Research Perspectives

Original Articles

Diversity of Rotavirus Strain Circulated in Gwangju, Republic of Korea: Min Ji Kim, Hye Sook Jeong, Seon Gyeong Kim, Se Mi Lee, Sun Hee Kim, Hye-Young Kee, Eun-hye Jo, Hye-jung Park, Dong-Ryong Ha, Eun Sun Kim, Kye-Won Seo, Jae Keun Chung; Osong Public Health Res Perspect. 2014;5(6):364-369. Published online December 31, 2014; DOI: https://doi.org/10.1016/j.phrp.2014.10.004

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Objectives
The introduction of new rotavirus vaccines into the public sphere makes it necessary to maintain constant surveillance and to heighten public awareness of the appearance of new rotavirus strains. We describe the molecular epidemiology of circulating rotavirus strains after vaccine introduction.
Methods
We collected a total of 1070 stool samples from children with gastroenteritis from January 2013 to June 2013. The antigenic prevalence of rotavirus group A was distinguished using enzyme immunoassay. The G and P genotypes of enzyme immunoassay-positive samples were determined with reverse transcription-polymerase chain reaction and nucleotide sequencing analysis.
Results
Of the 1070 samples collected, 277 (25.9%) tested positive for rotaviruses by enzyme-linked immunoabsorbent assay. The most prevalent circulating genotype G was G1 (51.3%), followed by G2 (34.7%) and G9 (10.8%). The predominant type of genotype P was P[8] (66.1%), followed by P[4] (31.4%). In this study, nine genotypes were found. G1P[8] was the most prevalent (51.8%), followed by G2P[4] (30.5%), G9P[8] (9.9%), and G2P[8] (4.0%). Several unusual combinations (G1P[4], G3P[9], G3P[8], G4P[6], and G9P[4]) were also identified.
Conclusion
Molecular epidemiological knowledge of rotaviruses is critical for the development of effective preventive measures, including vaccines. These data will help us monitor the effectiveness of current rotavirus vaccines.

Citations

Citations to this article as recorded by

Rotavirus infection among hospitalized children under five years of age with acute watery diarrhea in Sri Lanka
Paba Palihawadana, Gagandeep Kang, Janakan Navaratnasingam, Geethani Galagoda, Janaki Abeynayake, Madhava Gunasekera, Shilanthi Seneviratne
Vaccine.2018; 36(51): 7846. CrossRef
Complete genome sequence analysis of rare G4P[6] rotavirus strains from human and pig reveals the evidence for interspecies transmission
Rungnapa Malasao, Pattara Khamrin, Kattareeya Kumthip, Hiroshi Ushijima, Niwat Maneekarn
Infection, Genetics and Evolution.2018; 65: 357. CrossRef
Post-marketing safety surveillance conducted in Korea (2008–2013) following the introduction of the rotavirus vaccine, RIX4414 (Rotarix™)
Son Moon Shin, Chun Soo Kim, Naveen Karkada, Aixue Liu, Girish Jayadeva, Htay Htay Han
Human Vaccines & Immunotherapeutics.2016; 12(10): 2590. CrossRef

Multilocus Sequence Analysis of Housekeeping Genes and Antigenic Determinant Genes in Bordetella pertussis Strains Isolated in Korea: Sang-Oun Jung, Yu Mi Moon, So-Hyeon Kim, Hwa Young Sung, Seung-Jik Kwon, Yeon Ho Kang, Jae Yon Yu; Osong Public Health Res Perspect. 2011;2(2):115-126. Published online June 30, 2011; DOI: https://doi.org/10.1016/j.phrp.2011.08.003

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Abstract PDF

Objectives
To confirm genotype diversities of clinical isolates of Bordetella pertussis and to evaluate the risk of pertussis outbreak in Korea.
Methods
Seven housekeeping genes and 10 antigenic determinant genes from clinical B. pertussis isolates were analyzed by Multilocus sequence typing (MLST).
Results
More variant pattern was observed in antigenic determinant genes. Especially, PtxS1 gene was the most variant gene; five genotypes were observed from eight global genotypes. In the bacterial type, the number of observed sequence types in the isolates was seven and the most frequent form was type 1 (79.6%). This major sequence type also showed a time-dependent transition pattern. Older isolates (1968 and 1975) showed type 1 and 6 in housekeeping genes and antigenic determinant genes, respectively. However, these were changed to type 2 and 1 in isolates 1999–2008. This transition was mainly attributed to genotype change of PtxS1 and Fim3 gene; the tendency of genotype change was to avoid vaccine-derived genotype. In addition, there was second transition in 2009. In this period, only the sequence type of antigenic determinant genes was changed to type 2. Based Upon Related Sequence Types (BURST) analysis confirmed that there were two clonal complexes (ACCI and ACCII) in the Korean isolates. Moreover, the recently increased sequence type was revealed as AST2 derived from AST 3 in ACCI.
Conclusions
Genotype changes in Korean distributing strains are still progressing and there was a specific driving force in antigenic determinant genes. Therefore continuous surveillance of genotype change of the distributing strains should be performed to confirm interrelationship of genotype change with vaccine immunity.

Citations

Citations to this article as recorded by

Pertussis in the Post-COVID-19 Era: Resurgence, Diagnosis, and Management
Hyun Mi Kang, Taek-Jin Lee, Su Eun Park, Soo-Han Choi
Infection & Chemotherapy.2024;[Epub] CrossRef
Characterization of Bordetella pertussis Strains Isolated from India
Shweta Alai, Manish Gautam, Sonali Palkar, Jitendra Oswal, Sunil Gairola, Dhiraj P. Dhotre
Pathogens.2022; 11(7): 794. CrossRef
Variation in Bordetella pertussis Susceptibility to Erythromycin and Virulence-Related Genotype Changes in China (1970-2014)
Ying Yang, Kaihu Yao, Xiang Ma, Wei Shi, Lin Yuan, Yonghong Yang, Daniela Flavia Hozbor
PLOS ONE.2015; 10(9): e0138941. CrossRef
Recent Trends of Antigenic Variation inBordetella pertussisIsolates in Korea
So-Hyun Kim, Jin Lee, Hwa Young Sung, Jae Yon Yu, Seong Han Kim, Mi Sun Park, Sang-Oun Jung
Journal of Korean Medical Science.2014; 29(3): 328. CrossRef

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