Is WHO's aim to vaccinate 70% of world by June still realistic?

Public health experts say that while boosting immunity globally remains essential, the target figure is neither achievable nor meaningful, writes Jennifer Rigby

Bottles of the AstraZeneca Covid-19 vaccine. Currently, just 12% of people in low-income nations have had one shot of a vaccine.

Vaccinating 70% of the population in every country in the world against Covid-19 by mid-2022 has been the World Health Organisation's (WHO) rallying cry to end the pandemic.

But recently, public health experts say that while boosting immunity globally remains essential, the figure is neither achievable nor meaningful.