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Our study reveals that HuNoV capsid proteins and double stranded RNA colocalize within intestinal macrophages of infected zebrafish larvae  while the negative strand RNA intermediate was detected within FACS sorted macrophages. Flow cytometry confirms viral replication within these macrophages  constituting 9% of HuNoV?s host cells. Single cell RNA sequencing reaffirms their role in viral replication  as all three open reading frames were mapped to individual macrophages. Yet  macrophages were not required for productive infection given the limited changes in viral loads upon their absence. Identifying macrophages as host cells prompts a reevaluation of their role in HuNoV pathogenesis  offering new directions for understanding and controlling this infection. Overall design: Intestines of uninfected and HuNoV infected zebrafish larvae were dissected and subjected to the preparation of a single cell suspension that was analyzed using scRNAseq. 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