Tim Hand joins Immune to discuss the work from his laboratory showing that environmental enteric dysfunction, a disease caused by chronic malnutrition and infection, and which is associated with reduced growth and oral vaccine failure, is controlled by an increase in intestinal regulatory T cells.

Immune catches up on COVID listener email, including discussions about long-term COVID, cross-reactive memory to SARS-CoV-2, common mucosal surfaces, the risky business of peptide mega-pools, immunodominant epitopes and much more.