Streptococcal infection

A streptococcal infection is an infectious disease caused by bacteria belonging to the genus *Streptococcus*, most commonly *Streptococcus pyogenes* (group A) and *Streptococcus agalactiae* (group B)

A streptococcal infection is an infectious disease caused by bacteria belonging to the genus *Streptococcus*, most commonly *Streptococcus pyogenes* (group A) and *Streptococcus agalactiae* (group B) These pathogens frequently colonize and compromise the upper respiratory tract, skin, and soft tissues, but can affect any organ system and population, with distinct disease patterns seen in children, pregnant individuals, neonates, and the elderly

A streptococcal infection is an infectious disease caused by bacteria belonging to the genus *Streptococcus*, most commonly *Streptococcus pyogenes* (group A) and *Streptococcus agalactiae* (group B) These pathogens frequently colonize and compromise the upper respiratory tract, skin, and soft tissues, but can affect any organ system and population, with distinct disease patterns seen in children, pregnant individuals, neonates, and the elderly Clinically, manifestations range from localized non...

These pathogens frequently colonize and compromise the upper respiratory tract, skin, and soft tissues, but can affect any organ system and population, with distinct disease patterns seen in children, pregnant individuals, neonates, and the elderly

These pathogens frequently colonize and compromise the upper respiratory tract, skin, and soft tissues, but can affect any organ system and population, with distinct disease patterns seen in children, pregnant individuals, neonates, and the elderly Clinically, manifestations range from localized noninvasive illnesses—such as pharyngitis, impetigo, and cellulitis—to severe, invasive infections like bacteremia, necrotizing fasciitis, and streptococcal toxic shock syndrome Pathophysiologically, the...

Clinically, manifestations range from localized noninvasive illnesses—such as pharyngitis, impetigo, and cellulitis—to severe, invasive infections like bacteremia, necrotizing fasciitis, and streptococcal toxic shock syndrome

Pathophysiologically, the disease process is driven by bacterial adherence, evasion of host phagocytosis, and the elaboration of potent exotoxins and enzymes, which can also trigger delayed immune-mediated complications including acute rheumatic fever and post-streptococcal glomerulonephritis