Table 2.
Samples with discordant results obtained from different test kits.
| Sample number | Mic. | Giardia | Cryptosporidium | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Kit A |
Kit B |
Kit C |
Kit D |
Kit A |
Kit B |
Kit C |
Kit D |
||
| 6 | Giardia | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 7 | Giardia | +/+ | 0/0 | +/0 | +/+ | 0/0 | 0/0 | 0/0 | 0/0 |
| 8 | Giardia | +/+ | +/+ | +/+ | 0/0 | 0/0 | 0/0 | 0/0 | +/0 |
| 9 | Giardia | +/+ | +/+ | +/+ | +/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 12 | Giardia | +/+ | +/0 | +/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 15 | Crypto | 0/0 | 0/0 | 0/0 | 0/0 | +/+ | 0/0 | +/+ | +/+ |
| 18 | Crypto | 0/0 | 0/0 | 0/0 | 0/0 | +/+ | +/+ | +/0 | +/+ |
| 23 | Crypto | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 24 | Crypto | 0/0 | 0/0 | 0/0 | 0/0 | +/+ | +/+ | 0/0 | +/+ |
| 32 | undet | +/+ | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 33 | undet | +/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 34 | undet | +/+ | +/+ | +/+ | +/+ | 0/0 | 0/0 | 0/0 | 0/0 |
| 35 | undet | +/+ | +/+ | +/+ | +/+ | 0/0 | 0/0 | 0/0 | 0/0 |
| 42 | undet | 0/0 | 0/0 | 0/0 | 0/0 | +/+ | +/+ | +/+ | +/+ |
| 49 | undet | +/+ | +/+ | +/+ | +/0 | 0/0 | 0/0 | 0/0 | 0/0 |
|
| |||||||||
| Total positive | 9 | 6 | 7 | 5 | 4 | 3 | 3 | 5 | |
Mic = microscopy; undet = undetected; + = positive; 0 = negative. Results from duplicate tests are shown as +/+, +/0, and 0/0. Discordant results are in bold. Kit A = in-house RT-PCR assays, kit B = RIDA GENE Parasitic Stool Panel (PG1705), kit C = LightMix Modular Gastroenteritis Assays, and kit D = BD MAX Enteric Parasite Panel.