π¬ Immune cells keeping deadly fungus in check
Most people carry the fungus Cryptococcus neoformans in their lungs, kept dormant by the immune system. Researchers at Virginia Tech identified that several distinct CD4 T-cell populations are responsible for this control, not just one cell type. This finding was published in the journal mBio on July 22, 2026. The fungus becomes deadly when immunity weakens, causing over 150,000 deaths globally each year. Future preventive treatments must protect this entire network of immune cells. π¬