How to use in-sentence of “pathogenic”:
+ Such food compounds as polyphenols, oligosaccharides and polysaccharides may be useful for good bacteria and help reduce pathogenic species of human gut flora.
+ However, some species are pathogenic or parasitic, and yet others are symbiotic.
+ Rarely are members of the other two classes pathogenic to humans.
+ The good news is that there is a non-harmful strain which outcompetes the pathogenic strains.
+ Many species are parasitic, pathogenic or saprophytesaprophytic, and can survive without oxygen.
