Tremovirus, also known epidemic tremor, is a virus genus belonging to the Picornaviridae family.

Tremovirus is of economic importance to chicken farmers because it causes a drop in egg production in laying hens, and neurological diseases in chicks less than three weeks old.

The domestic host is the chicken, but it can also infect partridge, turkeys, quail, guineafowl, and pheasants.

Neurological signs such as ataxia, tremor of the head and neck, drooping wings, weakness, paralysis, exercise intolerance and blindness are seen in chicks less than 3 weeks old.

[citation needed] Antibodies can be detected using an ELISA or virus neutralisation.