<prompt> All of the following statements about Staphylococcus aureus are true, ExceptMost common source of infection is cross infection from infected peopleAbout 30 of general population is healthy nasal carriersEpidermolysin and TSS toxin are superantigensMethicillin resistance is chromosomally mediated  <response>: The most common source of infection is human patients and carriers Animals and inanimate objects being less impoant. Ref: Textbook of Microbiology; Ananthanarayanan and Panicker; 10th Edition; Page No: 205 