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Shanghai [a] is a direct-administered municipality and the most populous urban area in China.The city is located on the Chinese shoreline on the southern estuary of the Yangtze River, with the Huangpu River flowing through it.
Vaccine manufacturers do not receive licensing until a complete clinical cycle of development and trials proves the vaccine is safe and has long-term effectiveness, following scientific review by a multinational or national regulatory organization, such as the European Medicines Agency (EMA) or the US Food and Drug Administration (FDA). [105] [106]