Biological warfare (also known as germ warfare) is the use of biological toxins or infectious agents such as bacteria, viruses, and fungi with intent to kill or incapacitate humans, animals or plants as an act of war
Germ warfare is the use of germs in a war in order to cause disease in enemy troops, or to destroy crops that they might use as food. an international treaty banning germ warfare. The use of injurious microorganisms, such as bacteria or viruses, as weapons in warfare. the use of harmful bacteria in war to cause illness and death among the enemy