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

UC Union council

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