<prompt> Most common staphylococcal phage strain causing hospital infection808179803A3C6970  <response>: Option 1 Phage typing - Method used for detecting single strains of bacteria. Trace the source of outbreaks of infections. Identify different strains of bacteria within a single species. National reference center for phage typing - MAMC New Delhi. Phage type 8081 epidemic strains Cause hospital infections throughout the world Possess PVL Panton-Valentine leucocidin Penicillin-resistant. Option 2, 3, 4 No associated with hospital infections. 