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| ADS | Auto-Disable Syringe |
| AEB | Accidental Exposure to Blood |
| AEFI | Adverse Event Following Immunisation |
| ENT | Ear, Nose, and Throat (otolaryngologist) |
| EPI | Expanded/Essential Programme on Immunisation |
| HBV | Hepatitis B Virus |
| HCV | Hepatitis C Virus |
| HIV | Human Immunodeficiency Virus |
| HR | Heart Rate |
| IgG | Immunoglobulin G |
| IgM | Immunoglobulin M |
| IIA | Intermediate Immunisation Activities |
| IM | Intramuscular |
| INN | International Nonproprietary Name |
| IU | International Units |
| IV | Intravenous |
| MUAC | Mid-Upper Arm Circumference |
| MV | Measles Vaccine |
| ORS | Oral Rehydration Solution (or Salts) |
| PEP | Post-exposure Prophylaxis |
| PIRI | Periodic Intensification of Routine Immunisation |
| PO | Per Os (by mouth) |
| PPV | Proportion of the Population Vaccinated |
| R | Reproduction Number |
| R0 | Basic Reproduction Number |
| RR | Respiratory Rate |
| RUSF | Ready-to-use Supplementary Food |
| RUTF | Ready-to-use Therapeutic Food |
| SC | Subcutaneous |
| SIA | Supplementary Immunisation Activities |
| SpO₂ | Oxygen Saturation (Pulse Oximetry) |
| VC | Vaccination Coverage |
| VE | Vaccine Efficacy |
| VVM | Vaccine Vial Monitor |
| W/H | Weight/Height |
| WHO | World Health Organization |