A new study found that nebulized mRNA therapy could be an effective approach to treating acute respiratory distress syndrome (ARDS), a rapidly progressing lung disease that can lead to respiratory failure and death. This work focused on two genes, nuclear factor kappaB (NF-κB) inhibitor α super-repressor (IκBα-SR) and superoxide dismutase 3 (SOD3), previously shown to reduce the severity of pneumonia when delivered prophylactically by viral vectors.