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1 Department of Medical Microbiology and Genito-Urinary Medicine, University of Liverpool, Daulby Street, Liverpool L69 3GA, *Liverpool School of Tropical Medicine, University of Liverpool L69 3GA and †Department of Medical Microbiology and PHL, University of Wales College of Medicine, Heath Park, Cardiff CF14 4XN.
1 Department of Medical Microbiology and Genito-Urinary Medicine, University of Liverpool, Daulby Street, Liverpool L69 3GA, *Liverpool School of Tropical Medicine, University of Liverpool L69 3GA and †Department of Medical Microbiology and PHL, University of Wales College of Medicine, Heath Park, Cardiff CF14 4XN.