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Bacillus AnthracisThe bacteria Bacillus anthracis, or anthrax, can enter the body via three avenues: through the skin, into the lungs or down the digestive tract. Of these three methods, inhalation anthrax is the most deadly, with symptoms resembling those of the flu or a cold.
Botulinum toxin acts on the nervous system, causing trouble with respiration, swallowing, speaking, vision and overall physical weakness. Death results from the inability to breathe when the toxin paralyzes breathing muscles.
The infamous E. coli normally inhabits the intestines of healthy individuals. Sometimes, certain strains, or forms, of the bacteria arise that become detrimental to humans, especially the very young, immune-compromised or elderly. One rare, dangerous strain causes bleeding in the intestines.
Flesh-Eating BacteriaAlso called necrotizing fasciitis, flesh-eating disease occurs when bacteria consume human tissues lying under the skin, causing death of tissues and fatalities in a short amount of time. There are many pathogens that can cause this extreme disorder, one of which is the same kind of bacteria that causes strep throat.
Methicillin Resistant Staphylococcus AureusMRSA transmits through person-to-person contact or by use of contaminated items or surfaces. About 25 to 30 percent of the population carries the normal form of the Staphylococcus aureus on the skin or in the nose. Only one or two percent carries the resistant type or strain, which does not respond to conventional antibiotics previously used to treat staph infections, such as methicillin.