| GAPIII | Global Action Plan III for Poliovirus Containment | GCC | Global Commission for the Certification of the Eradication of Poliomyelitis |
| HC | Healthy Children | IM | Infectious material |
| ITD | Intratypic differentiation | iVDPV | Immune-deficiency associated VDPV |
| MoH | Ministry of Health | mOPV | Monovalent OPV (containing one type of attenuated Sabin poliovirus) |
| mOPV1 | Monovalent oral polio vaccine type 1 | mOPV2 | Monovalent oral polio vaccine type 2 |
| mOPV3 | Monovalent oral polio vaccine type 3 |