Latif , K., Naz, S., Altaf , I., Huang, J. dong, Bashir, R., Aslam , F. and Shaozhen Xing (2022) “Optimizing factors for the efficient expression and purification of spao and lamb from Salmonella typhi ”, Bioscience Journal. Uberlândia, MG, 38, p. e38084. doi: 10.14393/BJ-v38n0a2022-61149.