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Updated: May 8, 2026

Experimental Human Pneumococcal Carriage
Published on: February 15, 2013
Panton-Valentine leukocidin producing Staphylococcus aureus nasal carriage, in North-Lebanon
R Beyrouthy1, M Hamze, S Hleis
1Laboratoire de microbiologie santé et environnement, centre AZM pour la recherche en biotechnologies et ses applications, école doctorale des sciences et de technologie, université Libanaise, Tripoli, Lebanon.
Objectives:
We investigated the prevalence and the risk factors of nasal carriage of Staphylococcus aureus carrying Panton-Valentine leukocidin genes [Sa PVL(+)] in pupils.
Study Population And Methods:
Two hundred and fifty-seven pupils were screened by nasal swabbing. The detection of 16S rRNA, mecA and luk-PV genes was performed by PCR and the risk factors were assessed with the statistical analysis of a questionnaire.
Results:
Thirty-one percent of pupils were colonized, with 16.4% of isolates carrying the luk-PV gene and 8.8% the mecA gene. Children aged 7years or more and living in a boarding school were the factors promoting nasal carriage 60% of children who presented with an abscess in the previous year were carriers of luk-PV gene Sa.
Conclusion:
The study revealed a high prevalence of luk-PV gene among methicillin-susceptible strains and a statistically significant correlation between the presence of this gene and presenting with an abscess.
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