| HDCS | human diploid cell strain |
|---|---|
| HDCV | human diploid cell rabies vaccine |
| HDF | host defense factor; human diploid fibroblast |
| HDRV | human diploid rabies vaccine |
| HE | half-scan with extrapolation; hard exudate; hektoen enteric [agar]; hemagglutinating encephalomyelit... |