In this photo taken on Feb. 12, 2021 a healthcare worker fills a syringe with the AstraZeneca Covid-19 vaccine at a hospital in eastern Germany. Doctors and public health officials pleaded with Germans on February 18, 2021 to take up AstraZeneca vaccines against the coronavirus after muddled communication about the efficacy of the British-made jabs hit demand. (AFP / JENS SCHLUETER)