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Table 2 Fecal swab PCR results for Stationary Group, Principal Group, Sentinels, and Naïve/Challenged group From Day 47–77**

From: Evaluation of porcine epidemic diarrhea virus transmission and the immune response in growing pigs

  47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77
SG-1 - - - - - - - - - - - - - - - - -               
SG-2 - - - - - - - - - - - - - - - - -               
SG-3 - - - - - - - - - - - - - - - - -               
SG-4 - - - - - - - - - - - - - - - - -               
SG-5 - - - - - - - - - - - - - - - - -               
PG-1 - - - - - - - - - - - - - - - - -               
PG-2 - - - - - - - - - - - - - - - - -               
PG-3 - - - - - - - - - - - - - - - - -               
PG-4 - - - - - - - - - - - - - - - - -               
PG-5 - - - - - - - - - - - - - - - - -               
PG-6 - - - - - - - - - - - - - - - - -               
PG-7 - - - - - - - - - - - - - - - - -               
PG-8 - - - - - - - - - - - - - - - - -               
PG-9 - - - - - - - - - - - - - - - - -               
S2 - - - + - - - - - - - - - - - - -               
S3 - - - - - - - - - - - - - - - - -               
S4 - - - - - - - - - - - - - - - - -               
N/C1 - - - - + + + + + + + + + - - - - - - - - - - - - - - - - - -
N/C2 - - - - + + + + + + + + + + + + - - - - - - - - - - - - - - -
N/C3 - - - - + + + + + + + + + + + + - - - - - - - - - - - - - - -
N/C4 - - - - + + + + + + + + + + + + - - - - - - - - - - - - - - -
N/C5 - - - - + + + + + + + + + - - - - - - - - - - - - - - - - - -
  1. *On Day 0, the seeder pig (SG-1) was orally challenged with PEDV. On Days 1 and 2, 1 and 12 contact pigs, respectively were placed with the seeder pig. On Day 7, the Principal Group (PG) consisting of 9 contact pigs, and the Stationary Group (SG) consisting of 4 contact pigs and the seeder pig were selected. On Days 7, 14, 21, and 28, Sentinel pigs S1, S2, S3, and S4, were commingled with the PG, respectively. On Days 10, 17, 24, and 31, the respective sentinel pig was removed and placed in a separate room. S1 was euthanized and necropsied on Day 30. All other study animals were euthanized and necropsied on Day 78. Samples not collected D36-39. **PG and N/C pigs were orally challenged with CO-13 PEDV on D49. Cycle Threshold of ≤ 35 = positive result (+); Cycle Threshold of ≥ 36 = negative result (−), empty box = sample not collected.