The growing spread of the COVID-19 Delta variant is creating an increasingly stark choice that could make the difference between more reopenings — or a return to restrictions that decimated the world’s economy, a World Health Organization expert suggested on Friday.
Amid the leak of internal documents from the U.S. Centers for Disease Control and Prevention (CDC), comparing the transmissibility of Delta variant to that of chickenpox, new discoveries are sparking furious debate about how…
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