Table 2. Factors that may influence the feasibility of different vaccine options.
OPV
formulation |
Sabin OPV | Novel OPV | Comments |
---|---|---|---|
OPV1 | mOPV1 currently licensed and
available |
nOPV1 development under way and
likely available by the time of potential restart |
|
OPV2 | mOPV2 currently licensed and
available |
nOPV2 currently available under EUL
and likely licensed by the time of potential restart |
No use of OPV in RI is currently permitted,
and declaration of tOPV-bOPV switch failure is a prerequisite for changing this prohibition |
OPV3 | mOPV3 currently licensed and
available |
nOPV3 development under way and
likely available by the time of potential restart |
|
OPV12 | Sequential or coadministration
of mOPV1 and mOPV2 possible New bivalent formulation of Sabin OPV12 would require licensure |
Sequential or coadministration of
nOPV1 and nOPV2 would require licensure bnOPV12 would require licensure |
Sequential administration of mOPV1 and
nOPV2 possible Sequential or coadministration of nOPV1 and mOPV2 would require licensure Mixed Sabin and novel bivalent formulation of OPV12 would require licensure |
OPV13 | bOPV currently licensed and
available |
Sequential or coadministration of
nOPV1 and nOPV3 would require licensure bnOPV13 would require licensure |
Sequential or coadministration of mOPV1
and nOPV3 or nOPV1 and mOPV3 would require licensure Mixed Sabin and novel bivalent formulation of OPV13 would require licensure |
OPV23 | Sequential or coadministration
of mOPV2 and mOPV3 possible New bivalent formulation of Sabin OPV23 would require licensure |
Sequential or coadministration of
nOPV2 and nOPV3 would require licensure bnOPV23 would require licensure |
Sequential administration of mOPV3 and
nOPV2 possible Sequential or coadministration of nOPV3 and mOPV2 would require licensure Mixed Sabin and novel bivalent formulation of OPV23 would require licensure |
OPV123 | tOPV currently licensed and
available |
Sequential or coadministration of
nOPV1 and nOPV2 and nOPV3 would require licensure tnOPV would require licensure |
Sequential administration of bOPV and
nOPV2 possible Any other mixed Sabin and novel OPV formulation would require licensure |
Abbreviations:
EUL, emergency use listing; OPV, oral poliovirus vaccine; mOPVk, monovalent type k Sabin OPV, where k=1,2 or 3; nOPVk, monovalent type k novel OPV, where k=1,2 or 3;
bOPV, bivalent types 1 and 3 Sabin OPV; tOPV, trivalent types 1, 2 and 3 Sabin OPV; bnOPVx,y, potential future bivalent novel OPV, where x,y={12,23,13;
tnOPV, potential future trivalent novel OPV