Turkey meningo-encephalitis: a general review.

Turkey meningo-encephalitis (TME), a neuro-paralytic disease of the adult turkey caused by an Arbovirus, was described in 1960 in Israel, and not yet reported elsewhere. The seasonal outbreaks caused a high morbidity and a mortality up to 80%. A tendency toward spread has been found in the last two years. The TME virus was attenuated sucessfully by adapting it to a new host, the Japanese quail, and a vaccine prepared with this attenuated virus is effective in immunizing turkeys to the disease.