Figure 1.

Crystal VC kit. (A) 1) The dipstick is provided in an individualized, humidity controlled package; 2) a clean test tube is provided in the kit for each dipstick tested; 3) a Pasteur pipette is provided in the kit for each specimen to be transferred; and 4) a specimen processing vial containing enrichment media. (B) 1) A clean dipstick; 2) a negative dipstick showing clearly the control line only; 3) a Vibrio cholerae O1–positive dipstick showing both the control line and the O1-positive line. (C) A V. cholerae O1–positive dipstick as it appears when testing in the kit-provided test tube; note that only ∼200 μL of specimen should be added to the tube as indicated by the arrow.