pt. 1. The animalcules -- 1. Seeds of disease, seeds of life -- 2. How we make each other sick -- 3. The germ domain -- 4. The germ factory -- 5. The enemy within -- pt. 2. The seeds of disease -- 6. Person to person -- 7. Common ground -- 8. In thin air -- 9. On the wing and on eight little legs -- pt. 3. The new age -- 10. Not the usual suspects -- 11. The germ revolt -- 12. Germ warfare and terrorism -- 13. Germs for life.