Produced by macrophages, IFN-alpha have antiviral activities. Interferon stimulates the production of two enzymes: a protein kinase and an oligoadenylate synthetase. Available under the names Virbagen Omega and Intercat. Used in veterinary medicine to treat canine parvovirus, feline leukemia virus and feline immunodeficiency virus infections. Belongs to the alpha/beta interferon family.