Posted 9/12/2021 06:12 (#9215586 - in reply to #9215564) Subject: RE: Cattle vaccination help
north central iowa
I agree with Burdick that endovac caused your problem here. The endovac vaccines, are a bacterial toxoid vaccine. Inactivated vaccines use the killed version of the germ that causes disease.(like your vision vaccine) Now the endovac vaccines use toxoids which are altered forms of toxins that the bacteria produces. This allows the body to produce a protective immune response to the toxin w/o causing disease. You might want to consider adding H. somnus with your vision vaccine going forward.