Bacterial Toxins General aspects Specificity Some act on certain cell types Other affect wide range of cells and tissues Numbers produced by single bacterium Some produce none ● Pneumococci BIOL 533 Lecture 9BIOL 533 4 Lecture 9 Bacterial Toxins: General Aspects • Specificity – Some act on certain cell types – Other affect wide range of cells and tissues • Numbers produced by single bacterium – Some produce none • Pneumococci