[ II ] 
From these localities, during the period before they were discovered 
cattle were moved and fresh foci established, and for some months fresh 
outbreaks were discovered almost every week. The natives, particularly 
those from India, did not report cases at all or until a death had occurred , 
and in some cases outbreaks were only detected by the discovery of a 
freshly buried animal, anonymous letters, etc. 
In nearly all isolated outbreaks the origin of the disease could be 
traced to the' movement of cattle from an infected place previous to the 
discovery of that infection. . . A 
One series of outbreaks was directly referable to cattle being allowed 
to «raze on land on which infected cattle were or had been grazing. - 
lar^e number of bullock carts were required in connection with the railway 
workshop at Batu Road 3rd mile. Near this place was an early miec e 
district, and, in spite of strict orders to the contrary, when carts were un¬ 
loaded bullocks were often allowed to graze freely on this ground, and 
amongst groups of these cattle the disease occurred. ^ , 
The furthest places from Kwala Lumpur to which the disease sprea 
were Cheras, 10th mile, Dusun Tua, 17 mile, and Kuchai, 15th nme. In 
these places comparatively early information of the outbreaks ^as receded, 
and the disease remained limited to the group of animals amongst which it 
originated. The infection in two cases could be traced to the mov ement of 
one or more cattle from an infected area in Kwala Lumpur _ 
It was satisfactory to find at Dusun Tua that the inhabitants them¬ 
selves discovered the outbreak and its source, gave the necessary infor¬ 
mation and had rigidly confined their own cattle on their own responsibility. 
No further spread of the disease took place from these centres. ^ 
As a general result each of the numerous outbreaks were as outbreaks, 
quickly suppressed, but in the majority of cases sufficiently early information 
was not obtained and infected cattle in the incubation stage had been moved 
elsewhere and so started fresh outbreaks. Little help can be obtained fro 
the Indian natives, and information as to these transfers was only obtained 
after the fresh outbreaks. The people concerned in the transfer imariab y 
deny that any cattle have been transferred and the proof that they hav e is 
onlv to be obtained indirectly subsequently. 1 he great majority 
cases, 209 out of 245, in which the ownership was noted were m cattle 
hploncfincr to natives of India. . r ,, 
All the evidence points to a comparatively short diffusion of the virus 
in air under the ordinary conditions, lhere were cattle grazing \u in 4 
yards of the veterinary reserve at the Institute where cattle with Rinderpest 
were confined. None of these acquired the disease. A few cattle confined 
for over a month in and near a shed within this reserve did not acquire the 
disease, though other cattle in a shed 25 yards off were during that period 
in the acute stages of the disease. Not only as alreadv mentioned in the 
outbreak at the quarantine station did infection not take place for o\ er a 
week from a shed some 30 feet distant, but even of the buffaloes in the same 
long shed more than one-third did not get the disease for over two weeks, 
showing that no infection had been acquired by them for at least one week. 
It is also noteworthy that of animals confined in the same shed that 1 
isolated from each other a considerable proportion escape infection an 
those that become infected are often the pairs that work together. Out o o 
batch of 20, two pairs escaped infection altogether, and only one other amnia , 
whilst of the remaining 15, in 4 pairs both animals were attacked on t e 
