Vaccine is only weapon against perfect pathogen | News – The Times

Since the start of the pandemic, virologists have been sequencing Sars-CoV-2 viruses from around the globe to track their history and spread. Tens of thousands of virus sequences are logged, for example at the global science initiative website, GISAID.
Until now this has been largely for the virology purists, though it can tell many of the key stories of the pandemic. For example, America made much of blocking travel from China in the early days, whereas virus sequence evidence suggests that the…

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