@WHO: RT @DrTedros: Over the last 4 weeks, over 90% of shared #COVID19 virus sequences were of the Delta variant. But most of these were only shared by a few countries. To have a better 🌍 picture, we need to improve variant surveillance in all countries. New @WHO guidance: https://t.co/Ad9EC00reO https://t.co/ZVi5djC1h1

@WHO: RT @DrTedros: Over the last 4 weeks, over 90% of shared #COVID19 virus sequences were of the Delta variant. But most of these were only shared by a few countries. To have a better 🌍 picture, we need to improve variant surveillance in all countries. New @WHO guidance: https://t.co/Ad9EC00reO https://t.co/ZVi5djC1h1

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