• при анемични котки, нивото на смъртността от около 60% на възраст 4, 6, 9 и 12 месеца, е било намалено с около 30% след лечението с интерферон.
• in anaemic cats, mortality rate of about 60% at 4, 6, 9 and 12 months was reduced by approximately 30% following treatment with interferon. • in non-anaemic cats, mortality rate of 50% in cats infected by FeLV was reduced by 20% following treatment with interferon.