PMC:7784830 / 21527-21728 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T165","span":{"begin":0,"end":201},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The Center for Disease Control and Prevention defines vaccines as ‘A product that stimulates a person’s immune system to produce immunity to a specific disease, protecting the person from that disease."}