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