Figure 1.

Western blot of whole cell preparation of M. bovis BCG (1) and whole cell lysate of M. tuberculosis (2) samples, separated by SDS-PAGE 12.5% acrylamide gel. A: Molecular weight markers (Pharmacia), B: human colostrum (1/20); C: purified human secretory IgA (100µg/ml).

Alvarez et al. BMC Immunology 2013 14(Suppl 1):S3   doi:10.1186/1471-2172-14-S1-S3