Abstract: Current immunotoxicity testing guidance for drugs, high production–volume chemicals, and pesticides specifies the use of animal models to assess potential biomarkers of immune system effects (e.g., lymphoid organ and bone marrow indices, histopathology) or actual measures of immune function (e.g., responses to challenge with antigens or pathogens). These assays are resource intensive and often require special training or experience to ensure reliable results. Alternative in vitro assays to detect immunosuppression and allergic hypersensitivit...
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