Comparison of skin microbiota in severe and non-severe groups. Microbial composition was shown using the relative abundance of bacteria in genus Staphylococcus, classified at the species level. S. aureus, Staphylococcus aureus; S. epidermidis, Staphylococcus epidermidis; S. capitis, Staphylococcus capitis; S. caprae, Staphylococcus caprae; S. hominis, Staphylococcus hominis.