﻿62 



The Philippine Journal of Science 



1914 



hours each, after which they were removed and isolated. Im- 

 mediately after removing these exposed animals, they were 

 thoroughly disinfected outside of the corral. All of the cattle 

 exposed to infection were afterward isolated with precautions 

 to prevent accidental exposure from other sources. 



The details of the experiment appear in the double temperature 

 chart of animals 3001 and 3060. The plus and minus signs 

 indicate whether or not the animals subjected to infection by 

 exposure or inoculation developed rinderpest when afterward 

 isolated. All of these animals that developed rinderpest showed 

 the initial symptoms at the usual and expected interval corre- 

 sponding to the date of exposure. All of the animals that gave 

 negative results upon exposure subsequently contracted rinder- 

 pest in other experiments, except 3102, which did not react to 



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the supposedly active virus administered. Plus and minus signs 

 indicate the inconclusive nature of the test on the eleventh day. 

 Reference to the chart will show that an animal exposed to 

 the original infected animals on the fourth day of the experi- 

 ment, which was the day preceding the rise of temperature, did 

 not become infected. No infection resulted on the following 

 day — that of the first rise of temperature. From the sixth to 

 the tenth days, inclusive, exposure in the corral, with the two 

 original animals, resulted in the infection of the exposed. From 

 the eleventh to the twentieth days, inclusive, when the experiment 

 closed, exposure did not induce infection. Data on the eleventh 

 day are inconclusive. One of the original animals died on the 

 eleventh day. In the case of the animal that recovered, diar- 

 rhoea persisted for eight days after the last case of infection 



