PMC:7115396 / 31590-31750 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T451","span":{"begin":126,"end":133},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_10239"}],"text":" industry. To reduce the problems associated with vaccine reversion, researchers have explored the option of creating vaccine viruses using reverse genetic tech"}