Peste des petits ruminants

As the name indicates, PPR is primarily a disease affecting goats and sheep.

• Within the same environment, goats generally are more susceptible to the virus than sheep. They express the disease in severe, acute, or peracute forms which most frequently result in death. Sheep resist the virus better. They develop a protective immunity and only express the disease in its mild, sub-acute or unapparent forms.

• In the same species, the expression of viral susceptibility can vary according to the breed. Dwarf African goat breeds in humid and sub-humid areas are more severely affected by PPR than large Sahelian breeds in arid and semi-arid regions. This difference also is because at the same temperature, PPRV is more stable in a humid atmosphere than in a dry one.