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Table 2 Classification of quarters according to cell counts and bacteriological findings on sub-clinical cases.

From: Occurrence of Clinical and Sub-Clinical Mastitis in Dairy Herds in the West Littoral Region in Uruguay

Cell count (Fossomatic method) Sampled quarters
  Negative bacteriological findings Positive bacteriological findings
< 300 000 cell/ml 1 3158 (99.6%) healthy 12 (0.4 %) latent infection
> 300 000 cell/ml 1 627 (55%) non infectious mastitis 511 (45%) infectious mastitis
  1. 1 Threshold value