el-Morshedy H, Shehab A Y, Zaki A, Farag H F
Department of Tropical Health, High institute of Public Health, Alexandria, Egypt.
East Mediterr Health J. 2002 Jul-Sep;8(4-5):619-25.
Intra-specimen and day-to-day variations of Fasciola egg counts in stools were investigated for 16 cases of established fascioliasis. For each case six Kato slides from a single stool sample were examined daily for 5 consecutive days. The results indicated the presence of significant intra-specimen variations in more than one-third of the examined series, while the inter-specimen variation was almost negligible. The sensitivity of the Kato-Katz test for diagnosing Fasciola infection with three Kato slides from the same specimen or on different days ranged from 96.0%-99.1%. The examination of three Kato smears from a single stool specimen, which is more feasible in field studies, would give an accurate diagnosis of fascioliasis. Used as such, the Kato-Katz technique is highly sensitive in the diagnosis of fascioliasis.
对16例确诊的片形吸虫病患者，研究了粪便中片形吸虫虫卵计数的样本内和每日变化情况。对于每例患者，连续5天每天检查来自单个粪便样本的6张加藤玻片。结果表明，超过三分之一的检测系列存在显著的样本内差异，而样本间差异几乎可以忽略不计。使用来自同一样本或不同日期的3张加藤玻片进行加藤-凯茨试验诊断片形吸虫感染的灵敏度为96.0%-99.1%。在现场研究中更可行的从单个粪便标本检查3张加藤涂片，能够准确诊断片形吸虫病。如此使用时，加藤-凯茨技术在片形吸虫病诊断中具有高度敏感性。
