| NAC | National Authority for Containment | NAP | National Action Plan |
| NCC | National Certification Committee for Poliomyelitis Eradication | NEG | National Expert Group |
| NEV | Non-Enterovirus | nOPV | Novel Oral Polio Vaccine |
| NPAFP | Non-polio Acute flaccid paralysis rate | NPCC | National Poliovirus Containment Coordinator |
| NPEV | Non-Polio Enterovirus | NTFC | National Task Force for Containment |
| OBRA | Polio Outbreak Response Assessment | OPV | Oral Polio Vaccine |
| PEF | Poliovirus-Essential Facility | PID | Primary Immunodeficiency |
| PIM | Potentially Infectious Material | PV | Poliovirus |
| PV1 | Poliovirus type 1 | PV2 | Poliovirus type 2 |
| PV3 | Poliovirus type 3 |