What term describes the prevention of pathogen foothold due to resource competition by resident microbes?

Answer

Colonization resistance

Colonization resistance is the phenomenon where a diverse, thriving local microbial population physically occupies space and consumes resources, making it difficult for opportunistic pathogens like Clostridium difficile to establish themselves.

What term describes the prevention of pathogen foothold due to resource competition by resident microbes?
healthGutorganismbacteriamicrobiome