Hygieia is engaged in the research, development and manufacturing of veterinary and human biologics and pharmaceuticals. • Hy ... gieia manufactures more types of dairy - specific vaccines than any other company in the world • Hygieia is the only company in the world to manufacture a commercial vaccine against a venom • Hygieia is the only company that manufactures a vaccine against Foot Warts • Hygieia is the only company with a vaccine against Streptococcus uberis mastitis read more