It also has the potential application to act as a method to protect individuals from contagious infectious agents as {HEAD ~ a substitute} for {TAIL ~ anti viral vaccines} 
for
It also has the potential application to act as a method to protect individuals from contagious infectious agents as { HEAD ~ a substitute } for { TAIL ~ anti viral vaccines }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL