Table 2: Samples with discordant results obtained from different test kits.

Sample numberMic. GiardiaCryptosporidium
Kit
A
Kit
B
Kit
C
Kit
D
Kit
A
Kit
B
Kit
C
Kit
D

6Giardia0/00/00/00/00/00/00/00/0
7Giardia+/+0/0+/0+/+0/00/00/00/0
8Giardia+/++/++/+0/00/0 0/00/0+/0
9Giardia+/++/++/++/00/00/00/00/0
12Giardia+/++/0+/00/00/00/00/00/0
15Crypto0/00/00/00/0+/+0/0+/++/+
18Crypto0/00/00/00/0+/++/++/0+/+
23Crypto0/00/00/00/00/00/00/00/0
24Crypto0/00/00/00/0+/++/+0/0+/+
32undet+/+0/00/00/00/00/00/00/0
33undet+/00/00/00/00/00/00/00/0
34undet+/++/++/++/+0/00/00/00/0
35undet+/++/++/++/+0/00/00/00/0
42undet0/00/00/00/0+/++/++/++/+
49undet+/++/++/++/00/00/00/00/0

Total positive96754335

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.