What is the primary cause of impetigo infections of the skin?

Impetigo is primarily caused by bacteria, with Streptococcus and Staphylococcus species being the main culprits. Specifically, Staphylococcus aureus and Streptococcus pyogenes are the most common bacteria involved in impetigo infections. These bacteria can invade the skin, especially when there are breaks or abrasions, leading to the characteristic lesions associated with the condition.

Understanding the role of these bacteria is essential for effective treatment and prevention. For example, knowing that Staphylococcus aureus can cause not only impetigo but also other skin infections is important in clinical settings. This highlights the necessity of hygiene practices to reduce the risk of infection, particularly in environments where skin abrasions are likely.

While Escherichia coli and Acinetobacter baumannii are indeed associated with different types of infections, they are not the primary pathogens in cases of impetigo. This distinction underscores the importance of identifying the correct bacterial agents responsible for specific skin infections in order to implement appropriate treatment measures effectively.