PMC:7115396 / 6273-6445 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"100","span":{"begin":108,"end":111},"obj":"Species"},{"id":"101","span":{"begin":138,"end":141},"obj":"Species"}],"attributes":[{"id":"A100","pred":"tao:has_database_id","subj":"100","obj":"Tax:11120"},{"id":"A101","pred":"tao:has_database_id","subj":"101","obj":"Tax:11120"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"d by prevalent strains on the flocks.\nIn considering the limitations of the live attenuated and inactivated IBV vaccines, reverse genetic IBV vaccines have been developed i"}