What is a PET/CT scan? Positron Emission Tomography (PET) and Computed Tomography (CT) scans are both standard imaging tools that physicians use to pinpoint disease states in the body. A PET scan images the cellular activity of the body at a very early stage, often before anatomical changes take place.
Tularemia is a rare infectious disease that typically attacks the skin, eyes, lymph nodes and lungs. Tularemia â also called rabbit fever or deer fly fever â is caused by the bacterium Francisella tularensis.
1 Tularemia is caused by the bacteria Francisella tularensis. 2  Tularemia affects animals and humans. 3  Humans acquire tularemia when they come into contact with infected animals or are bitten by insects that feed on infected animals. Humans acquire tularemia when they come into contact with infected animals or are bitten by insects that feed on infected animals. 2  Tularemia may be spread through inhalation of dried animal matter, eating undercooked game, skinning or dressing killed animals, or drinking water contaminated with animal carcasses.