Excessive production and extreme editing of human metapneumovirus defective interfering RNA is associated with type I IFN induction

Abstract excerpt

Type I IFN production is one of the hallmarks of host innate immune responses upon virus infection. Whilst most respiratory viruses carry IFN antagonists, reports on human metapneumovirus (HMPV) have been conflicting. Using deep sequencing, we have demonstrated that HMPV particles accumulate excessive amounts of defective interfering RNA (DIs) rapidly upon in vitro passage, and that these are associated with IFN...

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