Abstract:
INTRODUCTION:Staphylococcal colonization is a risk factor for healthcare-associated infections, which are frequent in Neonatal Intensive Care Units (NICU). This study analyzed microbiology, epidemiology and clinical aspects of Staphylococcus spp. colonizing neonates. METHODOLOGY:Nasal or periumbilical swabs were evaluated from 175 newborns admitted to a NICU of a Rio de Janeiro hospital from March to September 2009. Clinical data were obtained from the medical records. SCCmec typing and the mecA and Panton-Valentine Leukocidin (PVL) genes were detected by PCR. Clonal diversity was evaluated by pulsed-field gel electrophoresis. RESULTS:Staphylococcus spp. isolates were detected in 98 (56%) neonates, 66.3% of them had birth weight ≤ 2500 g, 62.2% were preterm (˂ 37 weeks) and the mean length of hospitalization was 14.9 days. Among the 133 isolates identified, 48.1% were S. epidermidis, 23.3% S. haemolyticus and 13.5% S. aureus. Methicillin-resistant Staphylococcus isolate was detected in 77.6% of neonates. The methicillin-resistant S. aureus isolates carried the SCCmec type IV, while 94.6% of S. epidermidis and 85.7% of S. haemolyticus presented non-typeable cassettes. Among the S. aureus, 55.6% had PVL genes and the USA800 genotype was prevalent. Two genotypes of S. epidermidis and one of S. haemolyticus clustered 42.2% and 25.8% of the isolates, respectively. S haemolyticus colonization was associated with the use of parenteral nutrition and mechanical ventilation. CONCLUSION:High rate of neonates colonized by methicillin-resistant Staphylococcus species and the permanence of clones circulating in the NICU highlight the importance for continuous and preventive surveillance in this high-risk population.
journal_name
J Infect Dev Ctriesjournal_title
Journal of infection in developing countriesauthors
Salgueiro VC,Seixas MDL,Guimarães LC,Ferreira DC,Da Cunha DC,Nouér SA,Dos Santos KRNdoi
10.3855/jidc.11241subject
Has Abstractpub_date
2019-09-30 00:00:00pages
810-816issue
9eissn
2036-6590issn
1972-2680journal_volume
13pub_type
杂志文章abstract:BACKGROUND:Research on the effects of corticosteroids in bacterial meningitis (BM) yielded conflicting results. While some studies reveal that corticosteroids improve the outcomes in BM treatments, others provide strong evidence that patients do not profit from this treatment. We investigated the factors that may impac...
journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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doi:10.3855/jidc.7532
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pub_type: 杂志文章,评审
doi:10.3855/jidc.1487
更新日期:2011-08-12 00:00:00
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journal_title:Journal of infection in developing countries
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doi:10.3855/jidc.11989
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journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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journal_title:Journal of infection in developing countries
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