SlateOfficial admits Chinese vaccines have low effectiveness as country explores mixing shots.Apr 11, 2021bookmark_bordersharemore_vert
Al Jazeera EnglishChinese vaccines’ effectiveness low, official admitsApr 11, 2021bookmark_bordersharemore_vert
ReutersChina considers mixing COVID-19 vaccines to boost protection rateApr 11, 2021david evans & Cate CadellBy david evans & Cate Cadellbookmark_bordersharemore_vert
DW (English)COVID-19: Why is China's vaccination rate so low?Apr 13, 2021William YangBy William Yangbookmark_bordersharemore_vert
CNNChinese Covid-19 vaccine efficacy is 'not high,' top health official admitsApr 12, 2021bookmark_bordersharemore_vert