January 18, 2022
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B.117 Covid strains COVID-19 mutations SARS-CoV-2 Science Technology

Variant hunters race to find new strains where variant testing lags

EnlargeMarina Dekhnik | Getty ImagesIn mid-February, three travelers were stopped at the airport in Luanda, Angola. Even during the pandemic, the country, a hub for the oil industry, had seen plenty of passengers from Europe and South Africa, where two concerning variants of the virus that causes Covid-19 hold sway. But the strains weren’t yet circ...