A process for obtaining {HEAD ~ a virus} of {TAIL ~ the instant invention} may comprise the following steps: 
of
A process for obtaining { HEAD ~ a virus } of { TAIL ~ the instant invention } may comprise the following steps :
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH