The epidemiology and molecular characterization of methicillin-resistant staphylococci sampled from a healthy Jordanian population

Epidemiol Infect. 2013 Nov;141(11):2384-91. doi: 10.1017/S0950268813000010. Epub 2013 Jan 23.

Abstract

The prevalence of natural carriage and molecular epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-resistant coagulase-negative staphylococci (MR-CoNS) isolates in a Jordanian community were investigated. The MRSA nasal carriage rate in 227 healthy volunteers was 7·5% and the majority (81%) of MRSA harboured the resistance element SCCmec type IVe and were of a novel spa type t9519 (76%); other significant spa gene types were t223 (14·7%) and t044 (5·9%). All MRSA isolates were susceptible to other classes of antibiotics, and tested positive for at least three virulence factor encoding genes, but only two harboured the pvl gene. MR-CoNS carriage was 54·2% and these isolates were characterized by single, double and untypable SCCmec elements, with Staphylococcus epidermidis SCCmec type IVa predominating. Of eight subjects with nasal co-colonization of MR-CoNS + MRSA, three shared SCCmec type IV in both groups of organisms. This is the first report of methicillin-resistant staphylococci carriage in a Jordanian community and its findings are important for epidemiological study and infection control measures of these organisms.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents
  • Carrier State
  • DNA, Bacterial
  • Female
  • Humans
  • Jordan / epidemiology
  • Male
  • Methicillin Resistance
  • Methicillin-Resistant Staphylococcus aureus / genetics
  • Methicillin-Resistant Staphylococcus aureus / isolation & purification*
  • Nose / microbiology
  • Skin / microbiology
  • Staphylococcal Infections / epidemiology
  • Staphylococcal Infections / microbiology*

Substances

  • Anti-Bacterial Agents
  • DNA, Bacterial