How does streptococcus group A affect the body system?

Streptococcus group A, primarily known for causing strep throat, can lead to various infections, including skin infections, scarlet fever, and invasive diseases like necrotizing fasciitis and streptococcal Toxic shock syndrome. It affects the body by triggering an immune response, which can result in inflammation, pain, and tissue damage. Additionally, it can lead to complications such as rheumatic fever, which can affect the heart, and post-streptococcal glomerulonephritis, impacting kidney function. Prompt diagnosis and treatment are essential to prevent severe outcomes.