LDA Order Portal › Bacterial Antigen - Yersinia Image 1 of 1 Bacterial Antigen - Yersinia $60.00 Includes one vial of Yersinia. This vial contains over 50 doses. Add To Cart Added! Includes one vial of Yersinia. This vial contains over 50 doses. Yersinia is used to treat: Hashimoto’s thyroiditis psoriasis