“…For example, group I phages of the 80, 81, 52, 52A complex are frequently associated with severe sepsis in hospitals and strains lysed by the group I1 phage, 71 are associated with chronic conditions such as impetigo and pemphigus neonatum of the newborn (Parker & Williams, 1961). Also, typable food poisoning staphylococci are lysed mainly by the group I11 phages 6 and 47 (Munch-Petersen, 1963). However, the majority of staphylococci lysed by these phages do not form enterotoxins and group 111 staphylococci are the main typable staphylococci found in foods not incriminated in food-poisoning outbreaks (Jay, 1962;Baird-Parker, 1965).…”