ALEXANDER WINNING THE World Bank is preparing emergency financing to help about 30 African countries access COVID-19 vaccines, the global lender told Reuters, as the continent scrambles to secure doses and start immunising vulnerable groups. Only a handful of African governments have launched mass vaccination campaigns, whereas some countries in wealthier parts of the world have already administered millions of doses. Many rely on the World Health Organization's vaccine-sharing scheme COVAX, which delivered its first doses last week with a shipment to Ghana. The World Bank said financing projects were being prepared in African countries including the Democratic Republic of…