“…In the laboratory methicillin resistance is demonstrated either by growing the organisms at 30°C (other resistance patterns are determined at 37°C) or in the presence of high NaCl concentration. Nevertheless, Harrison & Lacey (1974) have experienced an outbreak of furunculosis amongst nurses due to a staphylococcus resistant to methicillin and other antibiotics. We have recently observed the colonization of nine patients with a methicillin resistant staphylococcus.…”