S. aureus can cause a range of illnesses, from minor skin infections, such as pimples, impetigo, boils, cellulitis, folliculitis, carbuncles, scalded skin syndrome, and abscesses, to life-threatening diseases such as pneumonia, meningitis, osteomyelitis, endocarditis, toxic shock syndrome, bacteremia, and sepsis.t is often positive for catalase and nitrate reduction. Although S. aureus is not always pathogenic, it is a common cause of skin infections such as abscesses, respiratory infections such as sinusitis, and food poisoning.
see the lists consulted section for full details the composers run from jacopo peri who wrote the first ever opera in late 16th century italy to john adams one of the leading figures in the contemporary operatic world
It is recognized as the first because it was the first of a series of similar pieces which established the form of early 17th century Italian opera, and all subsequent developments were based on that tradition. The score does not survive. There were many precursors of opera, and you can define it to include or exclude any of them.