J&J says single-shot Covid-19 vaccine neutralises Delta variant, ‘no need for booster’

Johnson & Johnson said that its single-shot coronavirus vaccine neutralises the fast-spreading Delta variant and provides durable protection against infection more broadly.The company said that recipients of its vaccine produced strong neutralising antibodies over the course of at least eight months against all variants including Delta, which was first seen in India and has been spreading around the globe.The variant has been identified in at least 96 countries, according to the World Health…

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