贾第鞭毛虫病

Giardiasis

贾第鞭毛虫病是全球范围内可治愈感染性胃肠炎的首位病因。据报道，高收入国家中该病的患病率为2％，7％，低收入国家中的患病率为2％-30％10由于疾病负担和与贫困的相关性，贾第鞭毛虫病被纳人世界卫生组织被忽视疾病倡议（WHO Neglected Diseases Initiative）。

The number of patients detected with Giardia will increase as routine testing of stool samples using highly sensitive diagnostic tests becomes more widespreadMost patients with Giardia in the UK acquire their infection in the UK and not from overseas travelTinidazole and metronidazole are equally effective as first line treatments, although tinidazole has a simpler regimen and fewer side effectsSecond line agents used in cases of treatment failure are unlicensed for giardiasis in the UK but are routinely used in many countriesAsymptomatic carriage of Giardia is common among household contacts, and testing of contacts is indicated in treatment failure and in household clusters