T43 |
93-622 |
Epistemic_statement |
denotes |
(1) in general the S INDEL PEDV strains cause milder diarrhea in pigs compared to the highly virulent emerging strains, so clinical samples may not be collected for diagnosis; and (2) many diagnostic tests or surveillance studies did not differentiate S INDEL strains from classical (if the S1 region of the S gene is the target) or emerging non-S INDEL PEDV strains (if S2, ORF3, E, M or N region is the target), such as using real-time RT-PCR targeting the N gene or sequence analysis of the S1 region only (Oka et al., 2014) . |