The cows were immunized against streptococcal infection.

摘要

This paper describes the recombination production of PC chemical protein in polymer plasma, including all amino acid sequences of PC protein in Streptococcus dysgalactae, and the single amino acid sequences of PC protein in Streptococcus parauberis and agalactae. The report also describes the use of gapc-4 chemical proteins in vaccines to prevent or treat streptococcal infection, especially mastitis.