Herd  
A B C D
         
No. of cows 37 26 40 32
No. of infected cows 25 16 29 2
67.50% 61.50% 72.50% #######
No. of cows according to the No. of infected quarters
         
1 quarter 8 4 10 2
2 quarters 6 6 7 0
3 quarters 8 5 9 0
4 quarters 3 1 3 0
Table 3: Prevalence and distribution of S. aureus mastitis infections in herds.