Abstract: WS / T 634-2018 Detection of intestinal protozoa—Iodine staining smear method is the first systematic technical standard to detect intestinal protozoa using iodine solution in China. This standard was issued on September 26, 2018 and implemented on April 1, 2019. The paper aims at interpreting the standard concerning its background and drafting process, methods specified in the standard, main contents, implementation and the focus on publicity, with an attempt to offer a guideline for professionals in disease prevention and control institutions as well as medical institutions at all levels in the detection of intestinal protozoa with iodine staining smear method.

Key words: Intestinal protozoa, Cyst, Iodine solution, Detection, Standard