OPV2 (specifically 2) cures zero infections because type 2 is extinct in the wild. If causes some infections.
So explain how my sentence isn't true?
A decade ago when type 2 was in the wild, OPV2 was very valuable. Today though it's the greatest obstacle to eradication (and not because people are doing something bad, it's just unfortunate circumstance).
OPV2 (specifically 2) cures zero infections because type 2 is extinct in the wild. If causes some infections.
So explain how my sentence isn't true?
A decade ago when type 2 was in the wild, OPV2 was very valuable. Today though it's the greatest obstacle to eradication (and not because people are doing something bad, it's just unfortunate circumstance).