The AstraZeneca vaccine is ineffective against the South African nCoV strain
AstraZeneca says the company's Covid-19 vaccine has only limited efficacy against a new strain of nCoV discovered in South Africa.
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D614G - a CoV strain variable of concern in Southeast Asia
D614G, a new strain of nCoV that is thought to spread much more strongly than the original strain in Wuhan, is present in many Southeast Asian countries.
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