Prevalence and characteristics of Streptococcus pneumoniae "putative serotype 6E" isolates from Asian countries

Jin Yang Baek; In Ho Park; Thomas Man kit So; M. K. Lalitha; Nobuyuki Shimono; Rohani Md Yasin; Celia C. Carlos; Jennifer Perera; Visanu Thamlikitkul; Po Ren Hsueh; Pham Hung Van; Atef M. Shibl; Jae Hoon Song; Kwan Soo Ko

doi:10.1016/j.diagmicrobio.2014.08.017

Prevalence and characteristics of Streptococcus pneumoniae "putative serotype 6E" isolates from Asian countries

Jin Yang Baek, In Ho Park, Thomas Man kit So, M. K. Lalitha, Nobuyuki Shimono, Rohani Md Yasin, Celia C. Carlos, Jennifer Perera, Visanu Thamlikitkul, Po Ren Hsueh, Pham Hung Van, Atef M. Shibl, Jae Hoon Song, Kwan Soo Ko

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The prevalence, antimicrobial susceptibility, and genotypes of Streptococcus pneumoniae "putative serotype 6E" isolates from Asian countries were investigated. A total of 244 S. pneumoniae serogroup 6 isolates obtained from 11 Asian countries were included in this study. Of the 244 serogroup 6 isolates, 101 (41.4%) were typed as "putative serotype 6E," followed by serotypes 6A, 6B, 6C, and 6D (27.0, 20.1, 5.7, and 5.7%, respectively). Multilocus sequence typing revealed that clonal complex (CC) 90, including ST90 and its variants, was the most prevalent clonal group of "putative serotype 6E" isolates (n = 63; 62.4%). CC146 and CC315 were also found frequently in some of the countries. Most of the "putative serotype 6E" isolates showed very high resistance rates against cefuroxime, erythromycin, azithromycin, clarithromycin, clindamycin, and trimethoprim/sulfamethoxazole, probably due to their highly resistant to antimicrobials clone, CC90. Our results indicate that "putative serotype 6E" is prevalent in Asian countries. The clonal dissemination of "putative serotype 6E" isolates was also identified.

Original language	English
Pages (from-to)	334-337
Number of pages	4
Journal	Diagnostic Microbiology and Infectious Disease
Volume	80
Issue number	4
DOIs	https://doi.org/10.1016/j.diagmicrobio.2014.08.017
Publication status	Published - Dec 1 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

Microbiology (medical)
Infectious Diseases

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Baek, J. Y., Park, I. H., So, T. M. K., Lalitha, M. K., Shimono, N., Yasin, R. M., Carlos, C. C., Perera, J., Thamlikitkul, V., Hsueh, P. R., Van, P. H., Shibl, A. M., Song, J. H., & Ko, K. S. (2014). Prevalence and characteristics of Streptococcus pneumoniae "putative serotype 6E" isolates from Asian countries. Diagnostic Microbiology and Infectious Disease, 80(4), 334-337. https://doi.org/10.1016/j.diagmicrobio.2014.08.017

Prevalence and characteristics of Streptococcus pneumoniae "putative serotype 6E" isolates from Asian countries. / Baek, Jin Yang; Park, In Ho; So, Thomas Man kit; Lalitha, M. K.; Shimono, Nobuyuki; Yasin, Rohani Md; Carlos, Celia C.; Perera, Jennifer; Thamlikitkul, Visanu; Hsueh, Po Ren; Van, Pham Hung; Shibl, Atef M.; Song, Jae Hoon; Ko, Kwan Soo.

In: Diagnostic Microbiology and Infectious Disease, Vol. 80, No. 4, 01.12.2014, p. 334-337.

Research output: Contribution to journal › Article › peer-review

Baek, JY, Park, IH, So, TMK, Lalitha, MK, Shimono, N, Yasin, RM, Carlos, CC, Perera, J, Thamlikitkul, V, Hsueh, PR, Van, PH, Shibl, AM, Song, JH & Ko, KS 2014, 'Prevalence and characteristics of Streptococcus pneumoniae "putative serotype 6E" isolates from Asian countries', Diagnostic Microbiology and Infectious Disease, vol. 80, no. 4, pp. 334-337. https://doi.org/10.1016/j.diagmicrobio.2014.08.017

Baek, Jin Yang ; Park, In Ho ; So, Thomas Man kit ; Lalitha, M. K. ; Shimono, Nobuyuki ; Yasin, Rohani Md ; Carlos, Celia C. ; Perera, Jennifer ; Thamlikitkul, Visanu ; Hsueh, Po Ren ; Van, Pham Hung ; Shibl, Atef M. ; Song, Jae Hoon ; Ko, Kwan Soo. / Prevalence and characteristics of Streptococcus pneumoniae "putative serotype 6E" isolates from Asian countries. In: Diagnostic Microbiology and Infectious Disease. 2014 ; Vol. 80, No. 4. pp. 334-337.

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abstract = "The prevalence, antimicrobial susceptibility, and genotypes of Streptococcus pneumoniae {"}putative serotype 6E{"} isolates from Asian countries were investigated. A total of 244 S. pneumoniae serogroup 6 isolates obtained from 11 Asian countries were included in this study. Of the 244 serogroup 6 isolates, 101 (41.4%) were typed as {"}putative serotype 6E,{"} followed by serotypes 6A, 6B, 6C, and 6D (27.0, 20.1, 5.7, and 5.7%, respectively). Multilocus sequence typing revealed that clonal complex (CC) 90, including ST90 and its variants, was the most prevalent clonal group of {"}putative serotype 6E{"} isolates (n = 63; 62.4%). CC146 and CC315 were also found frequently in some of the countries. Most of the {"}putative serotype 6E{"} isolates showed very high resistance rates against cefuroxime, erythromycin, azithromycin, clarithromycin, clindamycin, and trimethoprim/sulfamethoxazole, probably due to their highly resistant to antimicrobials clone, CC90. Our results indicate that {"}putative serotype 6E{"} is prevalent in Asian countries. The clonal dissemination of {"}putative serotype 6E{"} isolates was also identified.",

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AU - Yasin, Rohani Md

AU - Carlos, Celia C.

AU - Perera, Jennifer

AU - Thamlikitkul, Visanu

AU - Hsueh, Po Ren

AU - Van, Pham Hung

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AB - The prevalence, antimicrobial susceptibility, and genotypes of Streptococcus pneumoniae "putative serotype 6E" isolates from Asian countries were investigated. A total of 244 S. pneumoniae serogroup 6 isolates obtained from 11 Asian countries were included in this study. Of the 244 serogroup 6 isolates, 101 (41.4%) were typed as "putative serotype 6E," followed by serotypes 6A, 6B, 6C, and 6D (27.0, 20.1, 5.7, and 5.7%, respectively). Multilocus sequence typing revealed that clonal complex (CC) 90, including ST90 and its variants, was the most prevalent clonal group of "putative serotype 6E" isolates (n = 63; 62.4%). CC146 and CC315 were also found frequently in some of the countries. Most of the "putative serotype 6E" isolates showed very high resistance rates against cefuroxime, erythromycin, azithromycin, clarithromycin, clindamycin, and trimethoprim/sulfamethoxazole, probably due to their highly resistant to antimicrobials clone, CC90. Our results indicate that "putative serotype 6E" is prevalent in Asian countries. The clonal dissemination of "putative serotype 6E" isolates was also identified.

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