Final answer:
Impetigo is the skin infection common in children caused by beta-hemolytic streptococci, particularly Streptococcus pyogenes. It is highly contagious and can be diagnosed by its appearance or through testing. Proper hygiene is essential to prevent its spread.
Step-by-step explanation:
The skin infection caused by beta-hemolytic streptococci that is common in children is impetigo. This condition is highly contagious and can be caused by Staphylococcus aureus (S. aureus) alone, by Streptococcus pyogenes alone, or by a coinfection of the two. Impetigo's characteristic appearance often leads to its diagnosis, although culture and susceptibility testing can also be used when necessary.
Impetigo is one of several skin infections caused by Staphylococcus and Streptococcus bacteria, which can infect the skin if there is a breach through a cut or wound. Other common skin conditions caused by S. pyogenes include cellulitis, erysipelas, and erythema nodosum, each with distinct symptoms and presentation on the skin.
Infections like impetigo underline the importance of proper skin care and hygiene, especially in environments where children are in close contact. If suspected, impetigo should be evaluated and treated by a health professional to prevent spread and complications.