Abstract: Apparatus for typically delivering a measured quantity of liquid to a small animal comprising:a spray nozzle for producing an atomized stream of liquid;a syringe in fluid communication with the spray nozzle for delivering a measured quantity of the liquid from a liquid source to the spray nozzle;means for actuating the syringe to deliver the measured quantity of liquid activated by a compressed air signal from a compressed air source;means for regulating the compressed air signal to deliver to the spray nozzle a portion of the compressed air signal for atomizing the measured quantity of liquid; andmeans for transmitting the compressed air signal simultaneously to the actuating means and to the regulating means.

Abstract: A novel strain of attenuated infectious bursal disease virus VR2161, an infectious bursal disease vaccine containing the attenuated infectious bursal disease virus strain, and a method for controlling infectious bursal disease in poultry are disclosed.