Table 1.
Comparison of measles IgM RDT visual Test Line scoring with Siemens Enzygnost Anti-Measles Virus/IgM EIA results
| Measles IgM RDT results | ||||||||
|---|---|---|---|---|---|---|---|---|
| RDT interpretation: | Positive | Indeterminate | Negative | |||||
| RDT Test Line score: | 4+ | 3+ | 2+ | 1+/− | 0 | Invalid | Total | |
| Measles IgM EIA results | Positive | 7 | 44 | 23 | 0 | 3 | 1 | 78 |
| Equivocal | 0 | 0 | 1 | 0 | 0 | 0 | 1 | |
| Negative | 0 | 0 | 0 | 1 | 45 | 0 | 46 | |
| Total | 75 | 1 | 48 | 1 | 125 | |||
A visual Test Line consensus score of ≥2 was interpreted as positive for measles in the presence of a valid Control Line. EIA, enzyme immunoassay; RDT, rapid diagnostic test.