Letters that make TOPV
o, p, t, v are letters that make 'TOPV'
1 possible definitions for 'TOPV'
Under this definition, topv is a noun and has the following properties:
Sabin vaccine, oral poliovirus vaccine, OPV, trivalent live oral poliomyelitis vaccine have the same meaning as 'TOPV'
'TOPV' can be a type of poliovirus vaccine.