Published by BBC NEWS - 16th January 2022

Over half of the world’s population has received at least one dose of a Covid vaccine. Supply is still a big problem, especially in poorer countries where less than 10% of people are vaccinated. But even when vaccines are available, some remain hesitant to take them.

BBC Reality Check’s health reporter Rachel Schraer answers some of your concerns – from pregnancy side effects to the speed at which vaccines were developed.

Motion graphics by Jacqueline Galvin

Additional reporting by Chiagozie Nwonwu, Fundanur Ozturk and Waenur-aihan Waedoloh

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