<prompt> Answer this question truthfullyWhat are the factors that lead to impetigo?  <response>: <reason> It was previously believed that non-bullous impetigo is caused by group A streptococci whereas Staphylococcus aureus causes the bullous subtype of impetigo. Both bullous and non-bullous subtypes of impetigo are now understood to be primarily caused by S. aureus. Streptococci have been associated with the non-bullous form and ecthyma. The common causes of impetigo include: Staphylococcus aureus Methicillin-resistant Staphylococcus aureus MRSA Gentamicin-resistant Staphylococcus aureusStreptococcus pyogenesStaphylococcus aureusStaphylococcus aureus Group A, beta-hemolytic Streptococcus Streptococcus pyogenesGroup A, beta-hemolytic Streptococcus Streptococcus pyogenesArtemether and lumefantrin Secukinumab 