However, the tvar3/r4, tvar3/r5 and tvar5/r6 CEFs were inefficiently infected by RCASBP(A)-EGFP (Fig. 3B), with only 27.0%, 34.6% and 18.4% of the cells being infected at 7 days post-infection, respectively (Fig. 4C). The gene discussed is CD1A; the disease is infection.