PMC:7039910 / 13962-14309 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T99","span":{"begin":0,"end":347},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Since 2 February 2020, strict public health measures were taken to prevent population flow among distinct communities, whereas since 9 February 2020, public health interventions including quarantine of each building in the urban area and each village in the rural area were implemented in order to block the transmission chain among the household."}