The disease caused by the bacterium Francisella tularensis is tularemia. It is a zoonotic infection, meaning it normally circulates among animals but can infect humans through ticks, biting flies, contaminated water, contact with infected animals, or inhalation of contaminated material.
Tularemia is sometimes called rabbit fever because handling infected rabbits and other small mammals is a classic route of exposure. Its symptoms vary with how the bacterium enters the body. Ulceroglandular disease can produce a skin ulcer and swollen lymph nodes, while inhalation may cause a serious pneumonic form. Fever, chills, fatigue, and headache are common features.
The alternative answers describe different bacterial diseases. Glanders is caused by Burkholderia mallei, Q fever by Coxiella burnetii, and brucellosis by Brucella species. Their association with animals can make them easy to confuse with tularemia, but they are distinct infections.
Francisella tularensis is highly infectious in very small quantities, so laboratory and public-health handling requires care. Tularemia is generally treatable with appropriate antibiotics, although its presentation can resemble several other febrile illnesses.