﻿IX, B, 1 



Ward et al.: Transmission of Rinderpest 



51 



February 23. Bull 3058 was removed from corral, disinfected, and 

 segregated with a control. Sky clear and bright. 



February 24. Bull 3059 still in corral. Sky clear and bright. 



February 25. Bull 3059 was removed from corral, disinfected, and 

 segregated with a control. Sky partly cloudy. 



February 26. Corral empty. Sky cloudy and weather cool. 



Februai-y 27. Corral empty. Sky partly cloudy. Slight showers dur- 

 ing night and early morning. 



February 28. Corral empty. Sky clear and very hot weather. 



March 1. Wallow was reflooded with water to replace loss from leakage 

 and evaporation. Two native carabaos, 3078 and 3079, were placed in 

 the corral; they were seen to drink from the wallow. Sky clear and 

 bright. 



March 2. Carabaos still in the corral. Sky partly cloudy. 



March 3. Carabaos still in corral. Sky clear and bright. 



March 4. Carabaos still in corral. Rain during forenoon, clear in 

 afternoon. 



March 5. Carabaos 3078 and 3079 were removed from corral, disin- 

 fected, and segregated with a control. Sky clear and bright. 



None of the animals exposed in the corral in this experiment 

 contracted rinderpest. The susceptibility of 3052, 3078, and 

 3079 was proved subsequently by their contracting rinderpest 

 after suitable exposure. Bull 3059 did not react. Record of 

 3055 is not complete in this respect. 



The main details of the experiment are summarized in Table I. 



Table I. — Exposure of susceptible animals to supposedly infected corral. 



Animal No. 



Interval 

 between 

 removal 

 of sick and 

 exposure 

 of sus- 

 ceptible 

 animal. 



Time of 

 exposure 

 in corral. 



Result. 



Susceptibility 

 test later. 



3052 



Days. 



1 

 4 

 7 

 7 

 14 

 14 



Days. 



X 

 1 

 1 

 8 

 4 

 4 



Negative... 



do 



do 



do 



Susceptible. 

 Not tested. 

 Susceptible. 



3055 



3058 



3059 



3078 



do Susceptible. 



do . -- Do. 



3079 







1 



Subsequent experiments have shown the peculiarities of the 

 disease to be such that of the three animals last in the corral, 

 2985 only was probably disseminating infection on February 15. 

 This fact does not invalidate the experiment in demonstrating 

 the noninfectiveness of the corral after it had been occupied for 

 several previous months by infected animals. 



