Changes

Because secondary bacterial infections such as ''[[Mannheimia haemolytica]]'', ''[[Pasteurella multocida]]'' and ''[[Haemophilus somnus]]'' are common in cattle, '''[[antibiotics]]''' are often used as part of the treatment.

Because secondary bacterial infections such as ''[[Mannheimia haemolytica]]'', ''[[Pasteurella multocida]]'' and ''[[Haemophilus somnus]]'' are common in cattle, '''[[antibiotics]]''' are often used as part of the treatment.

=== Control ===

== Control ==

The main control measure is to ensure '''adequate colostrum at birth''' as passive transfer provides immunity to calves.  

The main control measure is to ensure '''adequate colostrum at birth''' as passive transfer provides immunity to calves.