What disease caused by beta-hemolytic streptococci?

Beta-hemolytic streptococci, particularly Group A Streptococcus (Streptococcus pyogenes), can cause several diseases, the most notable being strep throat (streptococcal pharyngitis). This bacterium can also lead to skin infections, such as impetigo, and more severe conditions like rheumatic fever and post-streptococcal glomerulonephritis. Group B Streptococcus (Streptococcus agalactiae) is associated with serious infections in newborns, including sepsis and meningitis.