262 The Philippine Journal of Science i9i6 



10. From the results obtained in experiment 33 it is proved 

 that cattle can contract rinderpest when inoculated with mixed 

 blood drawn from pigs and cattle sick with rinderpest. 



11. From the results obtained in experiments 34 and 35 it is 

 proved that cattle can contract rinderpest when drenched with 

 urine collected from pigs sick with rinderpest. 



12. From the results obtained in experiment 36 it is proved 

 that carabaos can contract rinderpest when exposed to pigs 

 sick with rinderpest. 



13. From the results obtained in experiment 37 it is proved 

 that carabaos can contract rinderpest when inoculated with 

 blood from pigs sick with rinderpest. 



14. From the results obtained in experiments 38 and 39 it is 

 proved that pigs can contract rinderpest when inoculated with 

 blood from carabaos sick with rinderpest. 



15. From the results obtained in experiment 40 it is proved 

 that pigs can contract rinderpest from cattle sick with rinder- 

 pest by means of the caretaker. 



16. From the results obtained in experiment 41 it is proved 

 that pigs remain immune to rinderpest after their recovery from 

 that disease for at least six hundred sixty-five days and un- 

 doubtedly during the rest of their existence. 



17. From the results obtained in experiment 42 it is proved 

 that pigs that have recovered from rinderpest are susceptible 

 to and may die from hog cholera, which shows that there is no 

 immunity against hog cholera conferred upon a pig that has 

 passed through an attack of rinderpest. 



18. From the results obtained in experiments 43 to 48, inclu- 

 sive, it is proved that pigs that have been hyperimmunized to 

 hog cholera are susceptible to rinderpest when exposed to cattle 

 sick with rinderpest. Although the pigs used in these experi- 

 ments did not run as severe a course of the disease as the aver- 

 age pig, there is a possibility that the strain of virus with which 

 they were infected was not of the most virulent type. This 

 condition is frequently noticed in rinderpest in cattle. One 

 strain may cause a high mortality, while another may cause a 

 comparatively low mortality. Thus it is rather difficult to state 

 definitely that the hyperimmunization to hog cholera was of 

 any benefit to the pigs when they were exposed to rinderpest. 



19. In summing up the results of all of these experiments, it 

 will be noted that cattle, carabaos, and pigs vary but slightly 

 in susceptibility to rinderpest and that the disease can be 

 transmitted practically as readily from one kind of animal to the 

 other as among the individuals of a single species. 



