Figure 3

Evaluation of 41 clinical specimens from Chengdu, Harbin and Jinan by RT CPA-NATS: (a) RT CPA-NATS data and (b,c) gel electrophoresis data. The product of RT-PCR is approximately150 bp. N, negative control; P, positive control. Samples 1–20 were obtained from Chengdu, 21–31 from Harbin and 32–41 from Jinan. Seven samples (Nos 21, 22, 23, 29, 35, 37 and 38) were tested PEDV positive by RT-PCR. However, 10 samples (Nos 5, 13, 21, 22, 23, 32, 35, 36, 37 and 38) were tested PEDV positive by RT CPA-NATS.