Revealed hours earlier by Brazilian authorities, Professor David Hui said CoronaVac’s final-stage testing results were ‘quite desirable’ Comparing its efficacy rates against higher numbers for Pfizer-BioNTech and AstraZeneca-Oxford versions could lead to false conclusions, he added

Source:
https://www.scmp.com/news/hong-kong/health-environment/article/3116928/hong-kong-fourth-wave-coronavirus-adviser-praises

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