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<table border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr valign="bottom"><td align="left">Research article
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ermits rdf:resource="http://web.resource.org/cc/DerivativeWorks"/> </cc:License> <item rdf:about="http://www.biomedcentral.com/1471-2334/7/51"> <title>Nasal carriage of a single clone of community-acquired methicillin-resistant Staphylococcus aureus among kindergarten attendees in northern Taiwan</title> <dc:title>Nasal carriage of a single clone of community-acquired methicillin-resistant Staphylococcus aureus among kindergarten attendees in northern Taiwan</dc:title> <dc:creator>Lo, Wen-Tsung</dc:creator> <dc:creator>Lin, Wei-Jen</dc:creator> <dc:creator>Tseng, Min-Hua</dc:creator> <dc:creator>Lu, Jang-Jih</dc:creator> <dc:creator>Chu, Mong-Ling</dc:creator> <dc:creator>Wang, Chih-Chien</dc:creator> <dc:identifier>info:doi/10.1186/1471-2334-7-51</dc:identifier> <dc:source>BMC Infectious Diseases 2007, 7:51</dc:source> <dc:date>2007-06-01</dc:date>
BMC Infectious Diseases</prism
ublicationName>
2007-06-01</prism
ublicationDate>
7</prism:volume>
1</prism:number>
Research article</prism:section>
51</prism:startingPage> </item> </rdf:RDF> -->.</td> </tr> </tbody></table>Nasal carriage of a single clone of community-acquired methicillin-resistant Staphylococcus aureus among kindergarten attendees in northern Taiwan
Wen-Tsung Lo
, Wei-Jen Lin
, Min-Hua Tseng
, Jang-Jih Lu
, Mong-Ling Chu
and Chih-Chien Wang 
BMC Infectious Diseases 2007, 7:51 doi:10.1186/1471-2334-7-51
<table class="smalltext" cellpadding="0" cellspacing="0"><tbody><tr> <td>Published</td> <td width="25"> </td> <td>1 June 2007</td> </tr> </tbody></table>
Abstract (provisional)
The complete article is available as a provisional PDF. The fully formatted PDF and HTML versions are in production.
Background
To evaluate the prevalence and microbiological characterization of community-acquired (CA) methicillin-resistant Staphylococcus aureus (MRSA) nasal carriage in a kindergarten.
Methods
Point prevalence study. Nasal swabs were collected from healthy children younger than 7 years of age who were attending a kindergarten in Taipei, Taiwan. A parent questionnaire regarding MRSA risk factors was administered simultaneously. All CA-MRSA colonization isolates were archived for subsequent antimicrobial susceptibility and molecular typing.
Results
Of the 68 children who participated in the study, 17 (25%) had S. aureus isolated from nasal swabs. Nine (13.2%) of the 68 children had CA-MRSA carriage, and none of them had any identified risk factors. Antimicrobial susceptibility testing revealed all of the 9 CA-MRSA colonization isolates had uniformly high resistance (100%) to both clindamycin and erythromycin, the macrolide-lincosamide-streptogramin-constitutive phenotype and the ermB gene. Pulsed-field gel electrophoresis revealed 8 (88.9%) of 9 CA-MRSA colonization isolates were genetically related and multilocus sequence typing revealed all isolates had sequence type 59. All of the colonization isolates carried the staphylococcal cassette chromosome mec type IV, but none were positive for the Panton-Valentine leukocidin genes.
Conclusions
The results of this study suggest that a single predominant CA-MRSA colonization strain featuring high clindamycin resistance circulated in this kindergarten. Additionally, due to the established transmissibility of colonization isolates, the high prevalence of nasal carriage of CA-MRSA among healthy attendees in kindergartens may indicate the accelerated spread of CA-MRSA in the community.
</td><td align="right">
<!-- <rdf:RDF xmlns:cc="http://web.resource.org/cc/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlnsBMC Infectious Diseases</prism
2007-06-01</prism
7</prism:volume>
1</prism:number>
Research article</prism:section>
51</prism:startingPage> </item> </rdf:RDF> -->.</td> </tr> </tbody></table>Nasal carriage of a single clone of community-acquired methicillin-resistant Staphylococcus aureus among kindergarten attendees in northern Taiwan
Wen-Tsung Lo
, Wei-Jen Lin
, Min-Hua Tseng
, Jang-Jih Lu
, Mong-Ling Chu
and Chih-Chien Wang 
BMC Infectious Diseases 2007, 7:51 doi:10.1186/1471-2334-7-51
<table class="smalltext" cellpadding="0" cellspacing="0"><tbody><tr> <td>Published</td> <td width="25"> </td> <td>1 June 2007</td> </tr> </tbody></table>
Abstract (provisional)
The complete article is available as a provisional PDF. The fully formatted PDF and HTML versions are in production.
Background
To evaluate the prevalence and microbiological characterization of community-acquired (CA) methicillin-resistant Staphylococcus aureus (MRSA) nasal carriage in a kindergarten.
Methods
Point prevalence study. Nasal swabs were collected from healthy children younger than 7 years of age who were attending a kindergarten in Taipei, Taiwan. A parent questionnaire regarding MRSA risk factors was administered simultaneously. All CA-MRSA colonization isolates were archived for subsequent antimicrobial susceptibility and molecular typing.
Results
Of the 68 children who participated in the study, 17 (25%) had S. aureus isolated from nasal swabs. Nine (13.2%) of the 68 children had CA-MRSA carriage, and none of them had any identified risk factors. Antimicrobial susceptibility testing revealed all of the 9 CA-MRSA colonization isolates had uniformly high resistance (100%) to both clindamycin and erythromycin, the macrolide-lincosamide-streptogramin-constitutive phenotype and the ermB gene. Pulsed-field gel electrophoresis revealed 8 (88.9%) of 9 CA-MRSA colonization isolates were genetically related and multilocus sequence typing revealed all isolates had sequence type 59. All of the colonization isolates carried the staphylococcal cassette chromosome mec type IV, but none were positive for the Panton-Valentine leukocidin genes.
Conclusions
The results of this study suggest that a single predominant CA-MRSA colonization strain featuring high clindamycin resistance circulated in this kindergarten. Additionally, due to the established transmissibility of colonization isolates, the high prevalence of nasal carriage of CA-MRSA among healthy attendees in kindergartens may indicate the accelerated spread of CA-MRSA in the community.