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2007, Number 80

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Rev Enfer Infec Pediatr 2007; 20.21 (80)

Settling frequency of methicillin resistant Staphylococcus aureus in a school-age children group

González AM, Juárez GI, González ML, Nadal BL

Language: Spanish
References: 40
Page: 86-91
PDF size: 109.72 Kb.


ABSTRACT

Introduction: Staphylococcus aureus colonizes the skin and the nose from 20% to 30% of children and adults, around 1% of the nasal carrier are methicillin resistant.
Objectives: to identify the stumps of Staphylococcus spp isolated in those perspired nasal, to determine the percentage of nasal carrier of S. aureus, the colonization frequency for stumps of S. aureus resistant to methicilin (SAMR), the crossed resistance of the isolated ones to different groups of antibiotics, the susceptibility borderline and the witnesses of the gene mecA like resistance mechanisms, the frequency of factors of risk that you/they are related with the state of payee of SAMR.
Desing: a traverse and descriptive study carried out in 512 scholars in the School Primary Popular Republic of Angola, from june to july, 2006. The standardized method of Kirby-Bauer was used to determine the susceptibility to the different antimicrobianos. For the detection of the gene mecA, the multiple polimerase chain reaction was used.
Results: we find 188 children colonized by S. aureus (36.7%) and only nine (4.7%) of they presented resistance to the oxacillina disk. Previous hospitalization and coexist with a hospital worker showed relationship statistically significant with the state of payee of the SAMR. The isolated stumps showed high indexes of resistance for penicillin (97.9%), erythromycin (39.6%) and clindamycin (21.8%). It was detected among the stumps of S. aureus that alone one behaved of the gene mecA, the remaining ones didn’t grow in the agar badges with oxacillin, indicating the presence borderline fenotype resistance.


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