Merck Manual

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Sulfur-induced polioencephalomalacia, steer
Sulfur-induced polioencephalomalacia, steer
Sulfur-induced polioencephalomalacia, steer

Steer with sulfur-induced polioencephalomalacia. The steer is depressed, blind, does not have a menace response, and shows nystagmus and dorsomedial strabismus.

Courtesy of Dr. Michel Lévy.