IFNL1 and Granuloma: To determine if IFNλ is expressed in granulomas, we compared IFNλ1/3 protein concentrations in non-diseased lung (no bacteria or granuloma present) and lung granulomas from matched as well as unmatched animals and found significantly more IFNλ1/3 in granulomas than non-diseased lung (Figure 1A).