| Acronym | Definition |
|---|
| HPAI➣Highly Pathogenic Avian Influenza |
| HPAI➣High Path Avian Influenza |
| HPAI➣Hospital Pharmacists Association, Ireland |
| HPAI➣High-Potency Active Ingredients (drugs) |
| HPAI➣Hewlett Packard Associates International |
| HPAI➣Habitual Physical Activity Index (questionnaire; Netherlands) |