AEFI Adverse event following immunization
AFP Acute flaccid paralysis
aVDPV Ambiguous variant poliovirus
BMGF Bill & Melinda Gates Foundation
bOPV Bivalent oral polio vaccine
CDC US Centers for Disease Control and Prevention
cVDPV Circulating variant poliovirus
cVDPV1 Circulating variant poliovirus type 1
cVDPV2 Circulating variant poliovirus type 2
DTP3 Diphtheria–tetanus–pertussis vaccine third dose
EMG Eradication Management Group
EOC Emergency Operations Center
EPI Essential Programme on Immunization
ES Environmental surveillance
EV Enterovirus
fIPV Fractional-dose inactivated polio vaccine
FLW Frontline health worker
FOMWAN Federation of Muslim Women’s Associations in Nigeria
FRR Financial Resource Requirements
FWG Finance Working Group
GAP Global Action Plan
GAPIII Third edition of the WHO Global Action Plan to minimize poliovirus facility-associated risk after type-specific eradication of wild polioviruses and sequential cessation of oral polio vaccine use
GCC Global Commission for the Certification of the Eradication of Poliomyelitis
GIS Geographic Information System
GPEI Global Polio Eradication Initiative
GPS Global Positioning Systems device
ICC Interagency Coordinating Committee
IFFIm Innovative Financing Facility for Immunization
IHR International Health Regulations
IMB Independent Monitoring Board
IMG Immunization Systems Management Group
IPC Interpersonal communication
IPV Inactivated polio vaccine
IVD Immunization and Vaccine Development
iVDPV Immunodeficiency-associated variant poliovirus
LGA Local Government Area
LQAS Lot Quality Assurance Sampling
mOPV Monovalent oral polio vaccine
mOPV2 Monovalent oral polio vaccine type 2
NCC National Certification Committee
NEAP National Emergency Action Plan
NGO Non-governmental organization
NID National Immunization Day
NSTOP Nigeria Stop Transmission of Polio programme
PAG Polio Advocacy Group
POB Polio Oversight Board
PPG Polio Partners Group
PRC Polio Research Committee
PSC Polio Steering Committee
OBRA Outbreak response assessment
OPV Oral polio vaccine
OPV2 Oral polio vaccine type 2
PEF Poliovirus-essential facility
PHEIC Public health emergency of international concern
PPG Polio Partners Group
RCC Regional Certification Commission
RED Reaching Every District
SAGE Strategic Advisory Group of Experts on Immunization
SBCC Social and behaviour change communication
SIA Supplementary Immunization Activity
SIAD Short Interval Additional Dose
SNID Subnational Immunization Day
STOP Stop Transmission of Polio programme
TAG Technical Advisory Group
tOPV Trivalent oral polio vaccine
UNICEF United Nations Children’s Fund
VAPP Vaccine-associated paralytic poliomyelitis
VDPV Variant poliovirus
VDPV2 Variant poliovirus type 2
VfM Value for money
VPD Vaccine-preventable disease
WHA World Health Assembly
WHO World Health Organization
WPV Wild poliovirus
WPV1 Wild poliovirus type 1
WPV2 Wild poliovirus type 2
WPV3 Wild poliovirus type 3