PMC:7405836 / 83947-84140 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T794","span":{"begin":161,"end":162},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"Nevertheless, owing to extensive diversity in antigenic variants, cross-protection rendered by the vaccines is significantly limited, even within the strains of a phylogenetic subcluster (104)."}

{"project":"LitCovid-sentences","denotations":[{"id":"T590","span":{"begin":0,"end":193},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Nevertheless, owing to extensive diversity in antigenic variants, cross-protection rendered by the vaccines is significantly limited, even within the strains of a phylogenetic subcluster (104)."}