Describe Acute Rheumatic Fever (ARF) and how Streptococcus pyogenes infections can lead to ARF.

Describe Acute Rheumatic Fever (ARF) and how Streptococcus pyogenes infections can lead to ARF. What causes the inflammation throughout tissues in the body? What happens to the heart during ARF. How can consequences like ARF be avoided following S. pyogenes infections? What precautions might someone who has had ARF need to follow during invasive dental procedures?