Table 4.

Number of holdings and outcome of epidemiological investigation of clusters to determine whether there were similarities between the cases included.

Syndrome	Start Date	End Date	Number of holdings	Similar presentation	Notes
Fetopathy	Jun 05	Oct 06	19	No	Mainly adult milking herds, but some misclassification
	Dec 04	Jun 05	19	No	Different breeds, herd size and some misclassification
Systemic	Oct 03	Apr 04	8	No	Diverse ages and presenting signs
	Mar 05	Sep 05	12	Yes	Adults with wasting could suggest Johne's Disease
Respiratory	Aug 04	Nov 04	3	No	Different age groups and presenting signs
Nervous	Jun 04	Feb 05	3	No	Insufficient cases