The epizootiological inquiry shall cover:

• the length of time during which African horse sickness may have existed on the holding,

• the possible origin of the African horse sickness on the holding and the identification of other holdings on which there are equidae which may have become infected or contaminated from the same source,

• the presence and distribution of disease vectors,

• the movement of equidae to or from the holdings concerned or any carcases of equidae removed from them.

In order to provide full coordination of all measures necessary to ensure eradication of African horse sickness as quickly as possible and for the purpose of carrying out the epizootiological inquiry, a crisis unit shall be established.

The general rules concerning national crisis units and Community crisis units shall be adopted by the Council, acting on a proposal from the Commission.