Selected helper T-lymphocyte epitopes, as predicted by the NetMHC II pan 3.2 server. The strong, intermediate, and non-binding affinities are represented by red, green, and black boxes, respectively. The epitope antigenicity was predicted by the VaxiJen v2.0 server at the 0.4-threshold level. The epitopes are promiscuous, non-allergic, non-toxic, and displayed 100% conservancy with the target sequence.