PMC:7796344 / 12944-13228 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T96","span":{"begin":265,"end":269},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" for pilgrims attending from countries listed at the time of the 2019 Umrah as polio active, some of the pilgrims had not taken a polio vaccine before travelling from at risk countries including Pakistan (n = 34/92; 31.2%) and Afghanistan (n = 16/80; 12.8%) [21].\n\n3.5. Duration of St"}