XEMA manufactures antigens, antibodies and immunoassays for medical and veterinary in vitro diagnostics: detection of tumor markers, hormones, infections, pre-/neonatal screening, allergy and food intolerance, humoral immunity, QC sera. In food, environment and forensics we determine food constituents and contaminants - antibiotics, mycotoxins, adulteration marker, with special attention to Halal line (detection of pork and alcohol) and new tests for sanitary control (rats, insects, fungi).