Gastrointestinal helminth infection occurs within a diverse microbiome, complicating the interpretation of whether effects are caused by the parasite versus the microbial community. Here, we present a protocol for deriving sterile larvae of the murine helminth, Heligmosomoides polygyrus bakeri (H. polygyrus), providing experimental control of the microbiome. We describe steps for sterilizing with a bleach solution and developing into infectious larvae using E. coli. We then detail procedures for removing bacterial contaminants before harvesting to ensure the generation of germ-free larvae.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11381856PMC
http://dx.doi.org/10.1016/j.xpro.2024.103144DOI Listing

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