Virax Biolabs Group Limited is a biotechnology company focused on immune response detection, T cell immune profiling, and in vitro diagnostic technologies for viral and immune-mediated diseases. It operates in the United Kingdom, the United States, and China. The company offers ViraxImmune, a T cell-based immune profiling and diagnostic platform for post-acute infection syndromes such as long COVID, myalgic encephalomyelitis/chronic fatigue syndrome, and post-treatment Lyme disease. It also provides ImmuneSelect, a research-use-only portfolio of peptide pool ELISpot plates and related immune reagents. Additionally, it conducts research and development and provides procurement, warehousing, product development, and staffing management services. Its customers include research organizations, academic institutions, contract research organizations, biopharmaceutical companies, independent laboratories, and distributors. Formerly known as Virax Biolabs (Cayman) Limited, it changed its name to Virax Biolabs Group Limited in September 2021. Founded in 2013, the company is headquartered in Lanarkshire, United Kingdom.