hypersensitivity
inflammatory response to an exogenous environmental antigen or an endogenous antigen initiated by the adaptive immune system
en-US/ˌhaɪpɚˈsɛnsɪtɪvɪti/
en-GB/ˌhaɪpəsənsɪˈtɪvɪtɪ/
inflammatory response to an exogenous environmental antigen or an endogenous antigen initiated by the adaptive immune system