TABLE 1.

Transmission of E. coli O157:H7 between pens

Animal category and sample collection timeNo. of animals with positive results/no. of animals exposed to infection
DonorPen 1Pen 2Pen 3Pen 4
Pig
    Initiala3/32/33/41/31/6
    Wk 23/33/34/43/35/6
Sheep
    Initial2/22/21/21/20/6
    Wk 21/21/20/20/20/6
  • a Initial, days 2 to 4 postexposure.