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Delta

Israel’s grim warning: Delta can overwhelm shots

SummaryIsrael has among the world's highest levels of vaccination for COVID-19, with 78% of those 12 and older fully vaccinated, the vast majority with the Pfizer vaccine. Yet the country is now logging one of the world's highest infection…

Delta variant triggers new phase in the pandemic

Science's COVID-19 reporting is supported by the Heising-Simons FoundationPolice officers stop cars at a checkpoint to prevent unauthorized travel into and out of Lisbon, Portugal, on 18 June.PHOTO: REUTERS/PEDRO NUNESWhen the coronavirus…