Queries about rinderpest in African wild animals.
1981
Provost A.
Rinderpest has almost disappeared from Africa, due to a successful vaccination campaign. The disappearance of any clinical evidence to rinderpest from domestic animals has been paralleled by its spontaneous disappearance from wild animals. However, a few serological surveys undertaken in wildlife have shown a sharp decline in terms of positive numbers, with the exception of 4 out of 25 buffalo sera from the Narok district, in southwestern Kenya, which were positive. There are two possible explanations for this discrepancy: a natural occurrence of a low-virulent (hypovirulent) strain of rinderpest, and the natural contact of buffalo with "peste des petits ruminants" (PPR) virus. These two viruses are very similar. The difference lies in the pathogenity for cattle; PPR virus is apathogenic for cattle although infective (with subsequent immunity to rinderpest); rinderpest is pathogenic.
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