CD28 Positive

**Semantic type:** Laboratory or Test Result

**Definition:** An indication that expression of CD28 has been detected in a sample.

**Synonyms:** - Antigen CD28 Positive - CD28 Antigen Positive - CD28 Molecule Positive - T-Cell Antigen CD28 Positive - T-Cell Specific Surface Glycoprotein CD28 Positive - T44 Positive - T90/44 Positive - Tp44 Positive