PMC:7405836 / 86950-87085 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T816","span":{"begin":128,"end":133},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_10239"}],"text":"k of cross-protection. That is mainly because of the extensive diversity existing among the different antigenic variants of the virus ("}