PMC:7519301 / 225-334
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T4","span":{"begin":13,"end":18},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_10239"},{"id":"T5","span":{"begin":33,"end":34},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"vaccine. The virus can mutate in a given individual, and these variants can be propagated across populations "}