21.   A smallpox vaccine exists, but there is no proven treatment for smallpox, nor any FDA-approved home anthrax test.

22.   Presently, although a research vaccine exists, there is no commercial production.

23.   Typhoid vaccines already exist, but could be made more effective.

24.   Vaccines exist but are quickly rendered ineffective by the development of new strains of the virus, so wholesale slaughter of livestock is used to contain the disease.

25.   Vaccines exist, but are quickly rendered ineffective by the development of new strains of the virus, so wholesale slaughter is used to contain the disease.

26.   Although vaccines exist, they have not been approved by the US Federal Drug Adminstration, posing a quandry for the military.

27.   Plague vaccines exist, but the WHO has said they should not be relied on as each dose only lasts a relatively short time and frequent boosters are required.