antiphagocytic

S. agalactiae's polysaccharide antiphagocytic capsule is its main virulence factor.

B. anthracis possesses a capsule that is antiphagocytic and is essential for full virulence.

This has an antiphagocytic effect, i.e. macrophages cannot "see" these bacteria as easily as if they were correctly opsonised by antigen.

Encapsulated bacteria are antiphagocytic and hence are susceptible to antibody mediated immune response (B cells) as opposed to cell mediated immune response.

Since FAK phosphorylation is involved in uptake of yersiniae as well as T cell and B cell responses to antigen-binding, YopH elicits antiphagocytic and other anti-immune effects.