How can we vaccinate the world? Five challenges facing the UN-backed COVAX programme

Vaccines are a key part of the solution to ending the COVID-19 pandemic and, since the early stages of the crisis, the World Health Organization (WHO) has argued that there needs to be a coordinated approach towards ensuring that everyone, not just people living in rich countries,  receives adequate protection from the virus, as it spread rapidly across the world.

Out of this concern grew the Global COVAX Facility, the only global initiative that is working with governments and manufacturers to ensure COVID-19 vaccines are available worldwide to both higher and lower income countries.  

Here are five things to know about the challenges facing COVAX, and how they can be overcome.

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