Definition: Interferon secreted by leukocytes, fibroblasts, or lymphoblasts in response to viruses or interferon inducers other than mitogens, antigens, or allo-antigens. They include alpha- and beta-interferons (INTERFERON-ALPHA and INTERFERON-BETA).
Other names Interferons, Type I; Interferon, Type I; Type I Interferons; Type I Interferon; Interferons Type I