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. Quantity: Add To Cart Added! Includes one vial of Yersinia. This vial contains over 50 doses. Yersinia is used to treat: Hashimoto’s thyroiditis psoriasis