COVID-19: inmunidad contra enfermedad se da un mes después de contagio o vacunación, afirmaron
15 de enero de 2021 - 08:27
Doses of Pfizer-BioNTech Covid-19 vaccine are prepared for injection on January 14, 2021 at the Christalain nursing home in Brussels with a syringe and a needle that allow one extra dose of vaccine per vial. - EU's medicines watchdog said on January 8, 2021 that six doses instead of five of the Pfizer-BioNTech coronavirus jab can be extracted from each vial if the correct needles are used, increasing the number of people who can be vaccinated with available supplies. (Photo by Kenzo Tribouillard / AFP)KENZO TRIBOUILLARD
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