Mining for crypto protection: a search for Cryptosporidium antibodies reveals antigens associated with immunity

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Abstract
Infectious diarrhea is a major cause of morbidity and mortality, particularly for children in low- and middle-income countries. Cryptosporidium is a diarrheal pathogen for which there is no vaccine and current therapies are only partially effective. In this issue of the JCI, Gilchrist, Campo, and colleagues surveyed a large cohort of Bangladeshi children to profile antibody responses against an array of Cryptosporidium proteins. They discovered 233 proteins to which children developed antibodies, identified seven as being associated with protection from reinfection, and provided insights regarding the longevity of Cryptosporidium antibodies and the development of antibody breadth. In this commentary, we discuss the burden of disease caused by Cryptosporidium and how these studies highlight the strategies to better manage this parasite.

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