Brief reportLow methicillin-resistant Staphylococcus aureus carriage rate among Italian dental students
Section snippets
Methods
In this cross-sectional study, all dental students from the Sapienza University of Rome were invited to participate. Samples were collected in classrooms. To increase the likelihood of detecting carriers, 3 samples were collected from each subject. A subject was classified as a carrier when at least 1 sample tested positive. In accordance with previous studies,7, 9 to assess whether dental health care was associated with MRSA occurrence within the sample under investigation, the sample was
Results
A total of 157 students (mean age, 22.6 ± 3.2 years; 46.5% males) participated (participation rates: 59.0% overall, 63.2% in preclinical students, and 56.3% in clinical students). There were 67 subjects in the preclinical group (mean age, 20.8 ± 1.7 years; 43.3% males) and 90 subjects in the clinical group (mean age, 24.0 ± 3.3 years; 48.9% males).
Overall, S aureus was detected in 24 subjects, and MRSA was detected in 5 subjects (carriage rate, 3.2%) (Table 1). Five preclinical students and no
Discussion
This study was performed in an area where MRSA was probably sporadic. Indeed, carriage rates in the general population, such as medical patients (0.2%; 95CI, 0.01-1.4%)21 and biomedical students (0.0%; 95% CI, 0.0-4.4%)13 from the same Italian university hospital, were very low. In this situation, MRSA distribution among students was not normal and followed a cluster distribution typical of sporadic diseases.22 Indeed, there were 2 clusters of MRSA-positive subjects, one among first-year
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