Delta variant challenges China’s zero Covid strategy — and raises questions over its vaccine efficacy 7 min read Top Stories Delta variant challenges China’s zero Covid strategy — and raises questions over its vaccine efficacy International News August 2, 2021 The latest outbreak started two weeks ago in the eastern city of Nanjing, where nine airport cleaners were found to be infected during...Continue Reading
Delta variant challenges China’s zero Covid strategy — and raises questions over its vaccine efficacy 7 min read Latest Delta variant challenges China’s zero Covid strategy — and raises questions over its vaccine efficacy International News August 2, 2021 The latest outbreak started two weeks ago in the eastern city of Nanjing, where nine airport cleaners were found to be infected during...Continue Reading