sleepy sickness

Aicardi-Goutières syndrome

plural of encephalization quotient

(biology) Relative brain size measure defined as the ratio between observed to predicted brain mass for an animal of a given size, based on nonlinear regression on a range of reference species.

(pathology) A form of encephalitis caused by the Powassan virus, a flavivirus transmitted by ticks.

(pathology) A viral infectious disease of the central nervous system borne by ticks, which most often manifests as meningitis, encephalitis, or meningoencephalitis.

(medicine, pathology) A rare, usually fatal, subacute-to-chronic central nervous system disease caused by certain species of free-living amoebae

A rare mosquito-borne disease caused by a togavirus, affecting horses and humans in the Americas.