Fig. 4From: The recombinant pseudorabies virus expressing porcine deltacoronavirus spike protein is safe and effective for miceGenetic stability of the rPRVXJ delgE/gI/TK-S. A.IFA. The expression of rPRVXJ-delgE/gI/TK-S (F5, F10, F15, F20 and F21) PDCoV S protein was identified by IFA. B. PCR identification. rPRVXJ-delgE/gI/TK-S (F5, F10, F15, F20 and F21) TK, gE, gI and S genes were identified by PCRBack to article page