VACCINE TO PROTECT A RUMINANT AGAINST PNEUMONIA CAUSED BY MANNHEIMIA HAEMOLYTICA

摘要

The present invention pertains to a vaccine for administration to the upper respiratory tract of a ruminant to protect said ruminant against pneumonia caused by Mannheimia haemolytica, the vaccine comprising in combination live attenuated Mannheimia haemolytica bacteria, live attenuated parainfluenza-3 virus and live attenuated bovine respiratory syncytial virus, wherein the vaccine is for administration to the upper respiratory tract of the ruminant via intranasal atomization of the vaccine.