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Sunday, 27 December 2020

¿Cuánta inmunidad de rebaño es necesaria?


By BY DONALD G. MCNEIL JR. from NYT en Español https://ift.tt/2MdG1Qf

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Evacuated Ukrainians from Russian-occupied Oleshky arrive in Belarus

Residents were taken out from the devastated city on Friday during a local ceasefire. from BBC News https://ift.tt/06RIHFJ