A bioterrorism attack is the deliberate release of viruses, bacteria, or other germs to cause illness or death. These germs are often found in nature. But they can sometimes be made more harmful by increasing their ability to cause disease, spread, or resist medical treatment.
Biological agents spread through the air, water, or in food. Some can also spread from person to person. They can be very hard to detect. They don't cause illness for several hours or days. Scientists worry that anthrax, botulism, Ebola and other hemorrhagic fever viruses, plague, or smallpox could be used as biological agents.
Biodefense uses medical measures to protect people against bioterrorism. This includes medicines and vaccinations. It also includes medical research and preparations to defend against bioterrorist attacks.Bioterrorism is a planned and deliberate use of pathogenic strains of microorganisms such as bacteria, viruses, or their toxins to spread life-threatening diseases on a mass scale in order to devastate the population of an area. People have described the next hundred years as the “century of biology.” Incredibly rapid and profound changes in genetic modifications in bio-molecular engineering and enhanced bio-production technologies, however, may make it easier for terrorists to overcome the barriers that inhibited acquisition of biological weapons in the past. Historically, biological weapons have been a threat to humans for many centuries. At those times, very crude methods such as fecal matter, animal carcasses, etc. were used to contaminate water sources, but now the concentrated forms of biological agents such as dried spores and genetically modified organisms are available, which are fatal even in minute quantity