The Centers for Disease Control and Prevention, Department of Defense, and National Institutes of Health will begin a collaborative study later this year in an effort to determine whether four injections of anthrax vaccine provide the same protection as the present six.
The Pentagon has insisted that anthrax immunization is necessary to protect US troops against possible future biological warfare attacks. Although the military contends that the vaccine has been shown to be safe when administered to veterinarians and others over the years, other experts—both civilian and military—argue that it poses a human health risk.
Gunby P. Fewer Anthrax Injections?. JAMA. 2000;283(13):1680. doi:10.1001/jama.283.13.1680