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Wiley InterScience

Environmental Microbiology

Environmental Microbiology

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Volume 8 Issue 6, Pages 1130 - 1133

Published Online: 16 Feb 2006

© 2010 Society for Applied Microbiology and Blackwell Publishing Ltd



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Brief report
Amoebae promote persistence of epidemic strains of MRSA
Sharon A. Huws 1† , Anthony W. Smith 1 , Mark C. Enright 2 , Pauline J. Wood 1 and Michael R. W. Brown 1*
  1 Department of Pharmacy and Pharmacology and
  2 Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
Correspondence to   *E-mail m.r.w.brown@bath.ac.uk; Tel. (+44) 1225 383782; Fax (+44) 1225 386114.

  Present address: Department of Plant, Animal and Microbial Science, Institute of Grassland and Environmental Research (IGER), Plas Gogerddan, Aberystwyth, SY23 3EB, UK.

Copyright © 2006 The Authors; Journal compilation © 2006 Society for Applied Microbiology and Blackwell Publishing Ltd

ABSTRACT

 

Summary

The control of healthcare-associated methicillin-resistant Staphylococcus aureus (MRSA) infection is of concern worldwide. Given the evidence that several pathogenic species replicate within amoebae and emerge more virulent and more resistant and the abundance of amoebae in healthcare settings, we investigated interactions of Acanthamoeba polyphaga with epidemic MRSA isolates. MRSA proliferated in the presence of amoebae, attributable partly to intracellular replication. Following 24 h of co-culture, confocal microscopy revealed that c. 50% amoebae had viable MRSA within phago-lysosomes and 2% of amoebae were heavily infected with viable cocci throughout the cytoplasm. Infection control strategies should recognize the contribution of protozoa.


Received 10 October, 2005; accepted 14 December, 2005.

DIGITAL OBJECT IDENTIFIER (DOI)
10.1111/j.1462-2920.2006.00991.x About DOI

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