the accumulated number, the accumulated percentage and the distribution of the mortalities of molluscs/crustaceans/fish in the establishment or group of farming establishments infected with category A diseases;
relevant information regarding movements to and from the infected establishment(s);
the distance to and density of neighbouring establishments;
the presence of wild aquatic animals;
any knowledge concerning mortalities, suspected cases or outbreaks in wild aquatic animals which are, or could be related to the specific category A disease;
the proximity to processing establishments, and the species present at those establishments, especially as regards listed species;
farming practices applied in the affected and neighbouring establishments;
hydrodynamic conditions and other identified factors of epidemiological significance.