id author title date pages extension mime words sentences flesch summary cache txt cord-327685-fymfqvp3 Channappanavar, Rudragouda Pathogenic human coronavirus infections: causes and consequences of cytokine storm and immunopathology 2017-05-02 .txt text/plain 5834 288 33 In contrast, highly pathogenic hCoVs such as severe acute respiratory syndrome CoV (SARS-CoV) and Middle East respiratory syndrome CoV (MERS-CoV) predominantly infect lower airways and cause fatal pneumonia. Severe pneumonia caused by pathogenic hCoVs is often associated with rapid virus replication, massive inflammatory cell infiltration and elevated pro-inflammatory cytokine/chemokine responses resulting in acute lung injury (ALI), and acute respiratory distress syndrome (ARDS). Although there is no direct evidence for the involvement of pro-inflammatory cytokines and chemokines in lung pathology during SARS and MERS, correlative evidence from patients with severe disease suggests a role for hyper-inflammatory responses in hCoV pathogenesis. Infection of non-human primates (NHPs) with SARS-CoV induced a dysregulated immune response resulting in increased disease severity in aged but not young NHPs, despite similar viral titers in the airways [67] . T cell responses are required for protection from clinical disease and for virus clearance in severe acute respiratory syndrome coronavirus-infected mice ./cache/cord-327685-fymfqvp3.txt ./txt/cord-327685-fymfqvp3.txt