<unk> s are cell-surface components or appendages of<unk> that facilitate<unk> n or adherence to other cells or to surfaces, usually in the host they are infecting or living in.<unk> s are a type of virulence factor. Adherence is an essential step in<unk>  pathogenesis or infection, required for colonizing a new host.<unk> n and<unk> s are also a potential target for prophylaxis or treatment of<unk>  infections.
Bacterial adhesin
Virulence factor
Microbial toxin
Chemical substance
Bioactive compound
Insect toxin
Protective factor
Antimicrobial peptides