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.
Concentrated anthrax spores were used for bioterrorism in the 2001 anthrax attacks in the United States, delivered by mailing postal letters containing the spores. The letters were sent to several news media offices and two Democratic senators: Tom Daschle of South Dakota and Patrick Leahy of Vermont.