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Nasal spray Covid-19 vaccine co-developed by Hong Kong scientists approved for emergency use in mainland Chi na in ‘historic breakthrough’

Nasal spray Covid-19 vaccine co-developed by Hong Kong scientists approved for emergency use in mainland China in ‘historic breakthrough’ https://www.scmp.com/news/hong-kong/health-environment/article/3202179/nasal-spray-covid-19-vaccine-co-developed-hong-kong-scientists-approved-emergency-use-mainland-china?utm_source=rss_feed

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