Merial Avinew NeO is a freeze-dried live attenuated virus of Newcastle disease, VG/GA-AVINEW strain, used as a vaccine for poultry and other bird species. The manufacturing process varies only after the bulk production: the live attenuated Newcastle virus is first freeze dried, then pressed into effervescent tablet before being packed in aluminum blisters. Effervescent tablets are available for suspension for oral, ocular, nasal administration and spraying.