Many laws are formulated internationally to curb the use of biological pathogens and toxic compounds as a biological weapon. But, such laws are not a hindrance to the terrorist as they employ calculated and well-refined methods that escape the eyes of authorities.
The use of biological agents in terrorism can find the place even in the old Roman civilization where human excretory substances were used against enemies. Dating back to the 184 BC in a battle fought on the ocean surface, a group of Hannibal planted mud vessels contained vipers at the base storage area of the enemy ship. “American Indians were given blankets that the British had contaminated with smallpox.” (Mergenhagen). In 1495 Spanish military officials mixed the blood of leprosy infected people with wine and served it to French people. In 1650 polish weaponry used spheres that contained saliva of dogs infected by the rabies virus. A well-documented case of bioterrorism of the 14th century is the use of Gram-negative bacteria Yersinia pestis that caused a well known Bubonic plague. It was used to generate fear and panic among the enemies and to remove people from their occupying areas.
The primary bioterrorism attack on America was master planned by a group of members of a religious organization. “The 1984 Rajneeshee bioterror attack was the food poisoning of the population in The Dalles, Oregon, United states through deliberate contamination of salad bars at ten local restaurants with salmonella enterica typhimurium. A leading group of followers of Bhagwan Shree Rajneesh (now known as Osho) had hoped to incapacitate the voting population of the city so that their own candidates would win the 1984 Wasco county elections.” (1984 Rajneeshee bioterror attack). The incident leads to about 750 people acquiring the disease caused by the bacterium, in which forty-five people required immediate medical attention due to worse health conditions. The incident did not .report any death due to biological poisoning. .