PMC:7652766 / 54246-54700 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T265","span":{"begin":0,"end":202},"obj":"Sentence"},{"id":"T266","span":{"begin":203,"end":454},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Li et al. (187) demonstrated that patients infected with SARS-CoV-1 had elevated levels of polyfunctional CD4+ T cells, especially those in a severe condition but who progressed to clinical improvement. In contrast, critically ill patients with SARS-CoV-2 demonstrated a drastic reduction of this cell subtype, which may indicate that this virus has developed its own mechanisms to control cellular responses, thus differing from other coronaviruses (9)."}

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