WHO to decide fate of 3-billion-dose Chinese vaccines within days We’re sorry, this service is currently unavailable. Please try again later. Dismiss Normal text size Advertisement Singapore: China’s top two vaccines could be approved by the World Health Organisation for global distribution within days, providing a potential boost to vaccine capacity of 3 billion doses a year. The decision to approve or reject the Sinopharm and Sinovac vaccines falls at a critical time for medical diplomacy as India grapples with the world’s largest outbreak, the US and Europe are accused of hoarding vaccine patents and China pushes its resources across the Indo-Pacific.