Staph Infection Symptoms and Causes

There are two bacterial species that cause such infections. One is Streptococcus pyogenes, and the other is Streptococcus aureus. One manifestation of this condition, non-bullous impetigo, begins as erupting blisters that leave raw, reddened patches and a brownish yellow crusty residue at the site of the eruption. Streptococcus aureus, on the other hand, causes bullous impetigo, which forms large blisters that do not burst. This condition tends to last longer as well.