APPENDIX 275 



Paragraph 4. Pigs which have been inoculated for 

 the production of hog-cholera virus shall be killed for 

 this purpose only after a veterinary inspector has ob- 

 served well-marked symptoms of hog cholera. 



Paragraph 5. All pigs from which hog-cholera virus 

 is derived shall be subjected to a post-mortem examina- 

 tion by a veterinary inspector. 



Paragraph 6. Hog-cholera virus derived from pigs 

 which become visibly sick within three days after the 

 time they are admitted to the premises of licensed estab- 

 lishments shall be destroyed as provided in section 11, 

 Regulation 8, under the supervision of a bureau em- 

 ployee. 



Paragraph 7. Hog-cholera virus derived from pigs 

 which upon post-mortem examination do not show le- 

 sions of acute hog cholera or which are found to be so 

 affected with any infectious, contagious, or communi- 

 cable disease or in such condition as to render the virus 

 contaminated, shall be destroyed as provided in section 

 11, Regulation 8, under the supervision of a bureau 

 employee. A diagnosis of hog cholera will not be made 

 unless macroscopic lesions of the disease are found in 

 two or more organs or tissues. 



Paragraph 8. Hog-cholera virus derived from pigs 

 which are found to be affected with tuberculosis shall be 

 destroyed as provided in section 11, Regulation 8, under 

 the supervision of a bureau employee, unless the lesions 

 are slight or are localized, and are calcified or encapsu- 

 lated. Hog-cholera virus derived from pigs so affected 

 may be marketed only when the product is heated as 

 provided in paragraph 6, section 3, of this regulation. 



Paragraph 9. All records shall indicate clearly the 

 particular animal, or group of animals, from which each 

 batch of hog-cholera virus is derived. The amount col- 

 lected and the total amount after phenolization should 

 be separately recorded. 



