Vaginal hysterectomy is a procedure in which the uterus is surgically removed through the vagina. One or both ovaries and fallopian tubes may be removed during the procedure as well; removal of both ovaries and fallopian tubes is called bilateral salpingo-oophorectomy (BSO) (figure 1).
click to view larger. Anthrax is the preferred biological warfare agent. It is highly lethal. â¢ 100 million lethal doses per gram of anthrax material (100,000 times deadlier than the deadliest chemical warfare agent). â¢ Silent, invisible killer. â¢ Inhalational anthrax is virtually always fatal. There are low barriers to production.
1 Bacillus anthracis, the etiologic agent of anthrax, is a large, gram-positive, non-motile, spore-forming bacterial rod.2  The three virulence factors of Bacillus anthracis are edema toxin, lethal toxin, and a capsular antigen. 3  Human anthrax has three major clinical forms: cutaneous, inhalation, and gastrointestinal.nthrax is an acute infectious disease caused by a spore-forming bacterium called Bacillus anthracis. It is generally acquired following contact with anthrax-infected animals or anthrax-contaminated animal products.