What is the primary mode of transmission for impetigo?

Impetigo, a highly contagious bacterial skin infection, primarily spreads through direct contact. This can occur when an individual comes into contact with the sores or blisters of an infected person, which often contain the bacteria responsible for the condition, typically Staphylococcus aureus or Streptococcus pyogenes.

Transmission can happen in various settings, particularly among children in school or daycare environments, where close physical interaction is commonplace. The bacteria can enter the skin through small cuts or abrasions, making it crucial for individuals, especially caregivers and those around infected individuals, to practice good hygiene to prevent the spread.

While shared personal items, contaminated surfaces, and airborne droplets can contribute to the transmission of other infections, these modes are not characteristic of how impetigo is primarily spread. The direct contact mechanism is what makes impetigo particularly transmissible, emphasizing the importance of preventive measures such as handwashing and avoiding contact with active lesions.