Typhoid or typhoid fever is a reportable, fecal-oral, potentially fatal infectious disease, caused by the bacteria <i>Salmonella typhi</i> and characterized by a non-focal fever.

Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- oder overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly).