| RCIA | red cell immune adherence |
|---|---|
| SAIDS | sexually acquired immunodeficiency syndrome; simian acquired immune deficiency syndrome |
| SIR | single isomorphous replacement; specific immune release; standardized incidence ratio; syndrome of i... |
| SIREF | specific immune response enhancing factor |
| SIRS | soluble immune response suppressor; Structured Interview of Reported Symptoms; systemic inflammatory... |