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Huifang Shan,1 Chunyan Wei,1 Jingyi Zhang,1 Min He,2 Zhongwei Zhang2 1Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, People’s Republic of China; 2Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of ChinaCorrespondence: Zhongwei Zhang, Email 716461751@qq.comBackground: Cryptosporidium is one of the major pathogens causing diarrhea worldwide. At present, cryptosporidiosis is difficult to prevent and control, especially in immunocompromised hosts. It may cause life-threatening diarrhea and malabsorption among children and immunocompromised patients. Therefore, it is very important to explore rapid diagnostic tools and treatment methods for Cryptosporidium infection.Case Presentation: We reported a case of severe diarrhea caused by cryptosporidiosis in a liver transplant recipient, whose condition was finally confirmed by metagenomic next-generation sequencing (mNGS) and fecal microscopy. His illness was resolved with immunosuppression regulation, nitazoxanide administration, and infection control.Conclusion: So far, nitazoxanide is still the first choice for the treatment of cryptosporidiosis. Our institutional experience suggested that nitazoxanide alone may be effective on the basis of adjusting immunosuppressant. In addition, even though diagnosis of Cryptosporidium infection is a challenge, mNGS can serve as a rapid screening tool in low-prevalence setting.Keywords: nitazoxanide, cryptosporidiosis, Cryptosporidium, transplant recipient, azithromycin |
