The CIEA NOG mouse® is a versatile and widely used super immunodeficient model with broad global adoption by researchers in both academia and industry. The NOG mouse is the preferred model for xenografts, particularly difficult-to-engraft cell lines (CDX), patient-derived xenografts (PDX), as well as immune system humanization. The NOG mouse is the base of a flexible platform that includes a variety of next-generation models as well as several different types of humanized models.