The Covid-19 crisis "has revealed how unequal our societies are," said United Nations Secretary-General Antonio Guterres in his message released on Monday for the World Health Day. Highlighting the inequalities and injustices that have been apparent throughout the pandemic, the UN chief said in his message for the day to be marked on Wednesday that the vast majority of vaccine doses administered so far have been confined to "a few wealthy countries" or those producing the shots cleared for distribution, the Xinhua news agency reported. "Within countries, illness and death from Covid-19 has been higher among people and communities that contend with poverty, unfavourable living and working conditions, discrimination and social exclusion," said Guterres.