INFECTIOUS DISEASES 



201 



8. Mortuary, crematory, abattoir, and desiccating or rendering 

 plant operated for utilizing the waste products of the establishment 

 to be located so as to prevent contamination from this source. 



9. Necessary dressing and toilet rooms, properly equipped and 

 located, to be provided. Also bottling and packing rooms. 



10. Provision for the sanitary disposal of all manure, offal and 

 debris. 



Operation. 



1. The operation of serum plants to be under the direct super- 

 vision of a competent veterinarian or other professional man whose 

 training and experience have fitted him for this work. 



2. Prohibition of the sale of serum and virus produced from animals 

 affected with any contagious disease other than hog cholera and of 

 any contaminated serum or virus. 



Fig. 22. STERILIZING ROOM. 



1. Electric sterilizer. 2. autoclave. 3. type of utensil used for collect- 

 ing: blood. 



3. Provision requiring full and complete records of all steps in the 

 manufacture and test of serum or virus. 



4. The label on the container of serum or virus to show the true 

 name of the product, the name or number of the manufacturer, the date 

 of preparation, or the date after which the manufacture no longer 

 guarantees the product, and a serial number to identify the product 

 with the records of the establishment. 



Two general methods are utilized in the immunization 

 of swine with anti-hog-cholera serum the serum alone 

 method and the simultaneous method. 



