Analysis of Type II Secretion of Recombinant Pneumococcal PspA and PspC in a Salmonella enterica Serovar Typhimurium Vaccine with Regulated Delayed Antigen Synthesis

Wei Xin, Soo- Young Wanda, Yuhua Li, Shifeng Wang, Hua Mo and Roy Curtiss III

Infection and Immunity 76 ( 7 ): 3241 - 3254 , 2008