These include the GP1 protein of Zaire ebolavirus (1.25 mg/g fresh weight), the B subunit of the heat-labile enterotoxin from E. coli (LTB, 0.12 mg/g fresh weight), hemagglutinins of the influenza H1N1 and H5N1 viruses (5–20 mg/L), tumor-associated antigens (TAAs) for breast cancer (637 μg/g fresh weight), and the chimeric protein Tc24:Co1, which combines the 24 kDa flagellar calcium-binding protein (Tc24) of parasite Trypanosoma cruzi with the Co1 M cell-targeting ligand (300 μg/g dry biomass) [29,30,31,32,33]. The gene discussed is LTB; the disease is breast cancer.