| Haber: |
Delta variant challenges China's zero Covid strategy — and raises questions over its vaccine efficacy
China's hardline zero Covid strategy is facing a fresh challenge from the rapid spread of the Delta variant, amid concerns over the efficacy of Chinese vaccines against the highly contagious strain.
https://www.cnn.com/2021/08/02/china/china-covid-delta-challenge-mic-intl-hnk/index.html
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