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Background  Coagulase negative staphylococci (CoNS) are important reservoirs of antibiotic resistance genes and associated mobile genetic elements and are believed to contribute to the emergence of successful methicillin resistant  Staphylococcus aureus  (MRSA) clones. Although, these bacteria have been linked to various ecological niches, little is known about the dissemination and genetic diversity of antibiotic resistant CoNS in general public settings.    Methods  Four hundred seventy-nine samples were collected from different non-healthcare/general public settings in various locations ( n  = 355) and from the hands of volunteers ( n  = 124) in London UK between April 2013 and Nov 2014.    Results  Six hundred forty-three staphylococcal isolates belonging to 19 staphylococcal species were identified. Five hundred seventy-two (94%) isolates were resistant to at least one antibiotic, and only 34 isolates were fully susceptible. Sixty-eight (11%)  mecA  positive staphylococcal isolates were determined in this study. SCC mec  types were fully determined for forty-six isolates. Thirteen staphylococci (19%) carried SCC mec  V, followed by 8 isolates carrying SCC mec  type I (2%), 5 SCC mec  type IV (7%), 4 SCC mec  type II (6%), 1 SCC mec  type III (2%), 1 SCC mec  type VI (2%), and 1 SCC mec  type VIII (2%). In addition, three isolates harboured a new SCC mec  type 1A, which carried combination of class A  mec  complex and  ccr  type 1.  MLST typing revealed that all  S. epidermidis  strains possess new MLST types and were assigned the following new sequence types: ST599, ST600, ST600, ST600, ST601, ST602, ST602, ST603, ST604, ST605, ST606, ST607 and ST608.    Conclusions  The prevalence of antibiotic resistant staphylococci in general public settings demonstrates that antibiotics in the natural environments contribute to the selection of antibiotic resistant microorganisms. The finding of various SCC mec  types in non-healthcare associated environments indicates the complexity of SCC mec . We also report on new MLST types that were assigned for all  S. epidermidis  isolates, which demonstrates the genetic variability of these isolates.    Electronic supplementary material  The online version of this article (10.1186/s13756-018-0367-4) contains supplementary material, which is available to authorized users.

antimicrobial resistance and infection control

The prevalence, antibiotic resistance and mecA characterization of coagulase negative staphylococci recovered from non-healthcare settings in London, UK