Save the Children estimates that for every $1 invested in the global COVID-19 vaccination drive, rich nations could avoid losing $35 from their budgets.
Yet, wealthy nations have failed to provide poorer countries with vaccines. And there has been a lack of coordination to tackle the pandemic.
That need to cooperate is now gaining momentum after the Omicron variant was detected by scientists in South Africa. WHO member states have agreed to negotiate a global agreement on pandemic preparedness.
And we look at why hypersonic missiles are driving a new arms race.