Tularemia is a bacterial infection caused by the bacterium Francisella tularensis. It can affect both humans and animals, often transmitted through contact with infected wildlife, bites from infected insects, or contaminated water. Symptoms may include fever, skin ulcers, and swollen lymph nodes. The disease is classified into several forms, depending on how it is contracted. The most common type is ulceroglandular tularemia, which results from skin contact with infected animals. Treatment typically involves antibiotics, and while tularemia can be serious, it is generally treatable when diagnosed early.