claim: tissue-resident cd8+ t cells drive age-associated chronic lung sequelae after viral pneumonia
evidence_1: these results provide insight into how age and prior infection may affect t cellmediated immunity to respiratory viruses such as influenza and sars-cov-2 and how these factors contribute to chronic lung pathology after viral pneumonia in older individuals.", "here, we report that influenza viral pneumonia leads to chronic nonresolving lung pathology and exacerbated accumulation of cd8+ tissue-resident memory t cells (trm) in the respiratory tract of aged hosts.")