Moxifloxacin, a fluoroquinolone antibacterial agent, has been approved under the FDA’s Animal Efficacy Rule to treat patients with plague.
A rare and potentially fatal illness, plague is caused by infection with the Yersinia pestis bacteria, also considered a potential bioterrorism agent. The 3 most common forms of plague are bubonic (lymph node infection), pneumonic (lung infection), and septicemic (blood infection) (http://1.usa.gov/1JwilK9).
Voelker R. More Protection Against Plague. JAMA. 2015;313(23):2312. doi:10.1001/jama.2015.6117