At least 50 countries have now begun vaccination programmes against COVID-19. It's a slow process in many places, and drug makers are struggling to keep up with deliveries. The European Union, criticised for its slow immunisation campaign, is restricting vaccine exports to 100 nations. The W.H.O. is warning that 'vaccine nationalism' will hamper access to jabs in developing countries. So what is the solution? - Subscribe to our channel: aje.io/AJSubscribe - Follow us on Twitter: twitter.com/AJEnglish - Find us on Facebook: www.facebook.com/aljazeera - Check our website: www.aljazeera.com/ #AlJazeeraEnglish #InsideStory #COVID19