Its features are Antigens suspensions ready for use (Brucella, Salmonella, Proteus). Stability and storage: 2.5 years at 2-8°C. New: 1 vial of each control REF 9901NC and REF 9901PC enclosed in each kit. Febrile antigens are suitable for both the rapid slide and tube agglutination tests against human sera for the detection of these agglutinins.