In this study, we investigated the ultrastructural modifications induced by influenza A (H7N9) virus in human lung epithelial cells. One particular characteristic of H7N9 viral infection is the formation of numerous M1-associated striated tubular structures within the nucleus and the cytoplasm, which have only previously been observed for a limited number of influenza A viruses, notably the 2009 pandemic (H1N1) virus.
Keywords: H7N9; Host cellular ultrastructure; Infection fingerprints; Influenza virus; M1; Matrix protein; Orthomyxoviridae; Viruses.
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