Skin bacteria, SEM

Numéro d’image : 13504211
Skin bacteria, SEM
Skin bacteria. Coloured scanning electron micrograph (SEM) of bacteria cultured from the human scalp. There are around 1000 species of bacteria from 19 phyla found on human skin. Skin flora is usually non-pathogenic, and either commensal (not harmful to their host) or mutualistic (offer a benefit). One benefit bacteria can offer is preventing transient pathogenic organisms from colonizing the skin surface, either by competing for nutrients, secreting chemicals against them, or stimulating the skin's immune system. However, resident microbes can cause skin diseases and enter the blood system, creating life-threatening diseases, particularly in immunosuppressed people. Magnification: x2000 when printed at 10cm wide.
Licence : Droits gérés
Crédit: Science Photo Library / Gschmeissner, Steve
Taille de l’image : 5542 px × 3154 px
Model Release : Non requis
Restrictions : -

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