Department of Clinical Microbiology, Division of Clinical Bacteriology, Umeå University, Umeå, Sweden. eva.freyhult@medsci.uu.se|Department of Clinical Microbiology, Division of Clinical Bacteriology, Umeå University, Umeå, Sweden. eva.freyhult@medsci.uu.se|Department of Clinical Microbiology, Division of Clinical Bacteriology, Umeå University, Umeå, Sweden. eva.freyhult@medsci.uu.se|Department of Clinical Microbiology, Division of Clinical Bacteriology, Umeå University, Umeå, Sweden. eva.freyhult@medsci.uu.se|Department of Clinical Microbiology, Division of Clinical Bacteriology, Umeå University, Umeå, Sweden. eva.freyhult@medsci.uu.se