Final answer:
S. pyogenes causes several pyogenic diseases including strep throat, impetigo, cellulitis, and necrotizing fasciitis.
Step-by-step explanation:
S. pyogenes, also known as Streptococcus pyogenes, is a pyogenic pathogen that causes various diseases. Examples of pyogenic diseases caused by S. pyogenes include strep throat, which is a common bacterial pharyngitis, impetigo, a highly contagious skin infection, cellulitis, which presents as a painful, red rash, and necrotizing fasciitis, a rare but life-threatening condition often referred to as flesh-eating disease.