These included segmented negative-strand RNA viruses such as lymphocytic choriomeningitis virus (LCMV), an arenavirus that carries out cap-snatching in cytoplasm33, the non-segmented negative-strand RNA virus vesicular stomatitis virus (VSV), which shares with IAV the activation of the RIG-I RNA sensor during infection34 and sensitivity to the cellular MxA protein35, as well as respiratory syncytial virus (RSV), which causes respiratory tract infections in humans36. This evidence concerns the gene MX1 and Respiratory tract infection.