Table II.

Manifestation of clinical response to infection with Streptococcus uberis. All quarters and milk samples were analyzed against these criteria at each milking following challenge.

Score	Appearance of quarter	Score	Appearance of milk
1	Normal	1	Normal
2	Minor changes (e.g. hardness)	2	Minor changes (e.g. a few flakes)
3	Moderate signs (e.g. heat, tenderness)	3	Moderate signs (e.g. clots and/or clumps)
4	Severe signs (e.g. distended and discomfort on palpation)	4	Severe signs (e.g. changes in colour and/or composition)