Brucellosis live vaccine (S2 strain) is mainly used to prevent brucellosis in sheep, pigs and cattle. The vaccine is injected intramuscularly, subcutaneously or intramuscularly, and can produce good humoral and cellular immune responses, providing immune protection for a variety of animals.

Brucellosis is a chronic zoonotic infectious disease caused by Brucella, which mainly damages the reproductive system of animals, manifested as inflammatory reactions of reproductive organs and fetal membranes, often leading to miscarriage, infertility, retained placenta and other problems, seriously weakening the reproductive capacity and production performance of animals. Brucellosis live vaccine (S2 strain) is applicable to the following scenarios:

    1.‌Prevention of sheep brucellosis‌: This vaccine can be used for sheep and goats to provide good immune protection‌. 

        2.‌Prevention of swine brucellosis‌: The swine strain 2 vaccine (S2 strain) is a vaccine independently developed by my country. It will not cause miscarriage in pregnant females and is suitable for immunization of pigs‌. 

‌            3.Prevention of cattle brucellosis‌: This vaccine can also be used for cattle to provide immune protection‌.