PMC:7001239 / 623-751 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T8","span":{"begin":14,"end":15},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T9","span":{"begin":78,"end":90},"obj":"http://purl.obolibrary.org/obo/OBI_0000245"},{"id":"T10","span":{"begin":115,"end":116},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"a, indicating a risk of global spread.\n\nOn 31 December 2019, the World Health Organization (WHO) was alerted about a cluster of "}