Carriage ofStaphylococcus aureusamong 104 healthy persons during a 19-month period

Abstract

The present study was undertaken to investigate the frequency of the nasal carrier rate of Staphylococcus aureus. The investigation was performed on 104 healthy persons. The total number of swabs performed was 1498 and this resulted in isolation of 522 S. aureus strains. All strains have been identified, tested for antibiotic susceptibility, and phage-typed. The carrier-index (number of positive swabs/number of total swabs for each individual person) was compared with different sampling and culturing methods, phage type, age, and resistance to antibiotics. There was statistical difference in carrier rate according to sex (P < 0.05). Among the 104 persons 15 (14.4%) were persistent carriers, 17 (16.3%) intermittent carriers, 55 (52.9%) occasional carriers and 17 (16.3%) non-carriers. Among intermittent and occasional carriers the phage-type distribution was different from the S. aureus strains isolated from Danish hospitalized patients in 1992, while the persistent carriers had similar phage-type distribution.

Associated risk factors and pulsed field gel electrophoresis of nasal isolates of Staphylococcus aureus from medical students in a tertiary hospital in Lagos, Nigeria

“…Contrary to previous observation [20], gender seems to have no effect on the carriage rate and neither did it appear that certain factors such as "nose picking" are important predisposing factors to colonization in the populations analyzed in this study. Cespedes et al [9] however found that hospital staff have higher incidence of hand and nasal colonization with S.aureus and could serve a vectors of S.aureus transmission to hospitalized patients.…”

Methicillin resistant Staphylococcus aureus nasal colonization among secondary school students at Duhok City-Iraq

“…4 In healthy population, the nasal carriage rate S. aureus is 10% to 35% and this rate can be influenced by age, underlying illness, and the environment in which the person lives. 21 In our study, student nasal carriage rate of S. aureus was shown to be 18.4%. This result is comparable to previous studies from different countries such as Taiwan.…”

Clearance of Staphylococcus aureus Nasal Carriage Is T Cell Dependent and Mediated through Interleukin-17A Expression and Neutrophil Influx

“…Although S. aureus can be transiently found in various locales on the human body, the major ecological niche is the anterior nares. In the human population, 20% are persistently colonized and the remaining 80% are intermittently colonized (1). S. aureus is a normal commensal organism of the human nostrils; however, carriage provides a staging ground for S. aureus to disseminate to other areas of the body where, once the physical barrier of the skin or epithelial surface is breached, distal infection can occur.…”