A record is given of a large number of equine animals under observation
for dourine at the Onderstepoort Laboratory, with their reactions to
serological tests over a period of five years.
Mention is made of the results of field testing for dourine on a limited
scale in different parts of South Africa but involving a large number of tests.
The articles have been scanned in colour with a HP Scanjet 5590; 300dpi.
Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.