Malaria ravages Nigerian city infamous for vaccine doubts / Mpox crisis: Why do African countries struggle to make or buy vaccines? / African nations hit by mpox still waiting for vaccines - despite promises by the west / BRICS countries account for around one quarter of global export of vaccines, medications / World leaders launch programme to boost vaccine production in Africa / Countries scramble for vaccines as expert warns 'we're not prepared for the next pandemic' / US, European nations seek increased vaccine production to protect workers exposed to bird flu