[[Image:Sensitisation phase Type IV Hypersensitivity.jpg|right|thumb|150px|Sensitisation phase: Type VI hypersensitivity-Brian Catchpole RVC 2008]] | [[Image:Sensitisation phase Type IV Hypersensitivity.jpg|right|thumb|150px|Sensitisation phase: Type VI hypersensitivity-Brian Catchpole RVC 2008]] |