China's Sinopharm Covid vaccine: how effective is it and where will it be rolled out?

Trials have claimed 86% efficacy, but Peru has suspended tests because of an adverse event' and there is concern about lack of transparency

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Trials in the United Arab Emirates have shown that China's Sinopharm vaccine has 86% efficacy. So what is the Chinese treatment, where is it being trialled and will it challenge the vaccines being developed in western countries?