Research Article
A Qualitative Assessment of the Risk of Introducing Peste des Petits Ruminants into Northern Zambia from Tanzania
Table 1
Practical interpretation of qualitative probability ratings [
24].
| Term | Meaning for probability of event occurrence | Meaning for consequence | Meaning for risk estimated |
| Negligible | Probability of occurrence of the event is possible only in exceptional circumstances | Low or no impact | Allow import without restrictions | Low | Occurrence of an event is a possibility in some cases | Minor impact | Authorise with specific measures to reduce the risks | Moderate | Occurrence of the event is a possibility | Average impact | Provide assessment of mitigation options before authorising | High | Occurrence of the event is clearly a possibility | Serious impact | Prohibited until measures to reduce the risk have proven their efficiency (implement and audit) |
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