<unk>  refers to the degree of pathogenicity of a microbe, or in other words the relative ability of a microbe to cause disease.
The word<unk> ulent, which is the adjective for<unk> , derives from the Latin word<unk> ulentus, which means "full of poison."  From an ecological point of view,<unk>  can be defined as the host's parasite induced loss of fitness.
Virulence
Flatulence
Pungency
Stripping
Irritation
Overeating
Nail changes
Milia