Administration of vaccines before exposure to disease allows the animal to generate a high level of immunity before contact with a disease-causing organism. Animals vaccinated in the face of an outbreak do not have this advantage. Therefore, vaccine usage under these conditions generally cannot be expected to produce the best results. Preventive Vaccinations Recommendations may vary according to manufacturers, management conditions, and other factors. Do not confuse the term vaccination with the term prevention.
Vaccinations are one area to be considered in a preventive health program.
Sudden death is the most frequent sign with other symptoms also present. Clostridium perfringens , Type C and D toxoid, is effective when administered under proper conditions. The name of this bacteria is being changed from Vibrio to Campylobacter . Generally, this disease causes abortions, dead, and weak lambs. It is probably the most common cause of abortions in sheep.