Germs Warfare

Chapter1 billions, planet, thrive, successful, humans, constant, bacteria, surround, digest, vitamins, minerals, survive, intestines, plants,**tanks, harmless, dangrous, rule, stupid father, adventage, invisible.
Chapter2 microcopic, spread, touching, impossible, secret weapon, invisibility, proper, *strategy, cure, disease, hospital, *instrument, ready to strike, 開始凍, invented, magnifying -
glass, actually, vital, identifed.
Chapter3 *information, *infected, *scientists, *research,*grapes, *sore throat,*serious,*illness,*affects,*poisoning,incredibly,splitting,Unfortunately,plenty,condition,provide.