Amid ruptures to the conventions of international cooperation, attenuated by the Covid-19 pandemic, South-South cooperation has the opportunity to prove that its hallmark characteristics of solidarity, self-reliance, equity, trust and reciprocity can prevail against the tectonic shifts under way in geopolitics.

Effective cooperation in public health is based on the principle of mutual protection. Countries in the global South, China included, have thus prioritised humanity-based health and…