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<http://schema.org/headline>
"V&amp;#7855;c xin ng&amp;#7915;a COVID-19 đư&amp;#7907;c phân b&amp;#7893; th&amp;#7871; nào?"
<https://tuoitre.vn/vac-xin-ngua-covid-19-duoc-phan-bo-the-nao-20210602000001531.htm>