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The latest \u201cvariant of concern\u201d has spread far\u2014and fast. We examine what has been learned about it at equally striking speed, and ask what to look out for next. South-East Asia has long had a methamphetamine problem; so-called compulsory treatment centres are only making matters worse. And the effort to make a minuscule lemur science\u2019s next super-model. 

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