Core Findings - Severe COVID-19 is associated with an increased risk of subsequent lung cancer [5] - Previous viral pneumonia accelerates lung tumor growth in multiple mouse models [7] - Viral pneumonia epigenetically reshapes the lung microenvironment to favor tumor development [7] - Combined blockade of CXCR2 and PD-L1 enhances T cell immunity and limits tumor growth post-viral infection [7] Implications - The findings establish a causal relationship between viral pneumonia and subsequent lung cancer occurrence, highlighting the necessity for enhanced monitoring and targeted interventions to reduce post-COVID cancer risk [9]