The World Health Organisation has declared the COVID-19 virus is a pandemic, but says the tide can be turned and countries can "change the course" of the global outbreak. (Subscribe: https://bit.ly/C4_News_Subscribe) As of 11th March, coronavirus has infected over 125,000 people and led to nearly 4,600 deaths worldwide. ------- Watch more of our explainer series here - https://www.youtube.com/playlist?list... Get more news at our site - https://www.channel4.com/news/ Follow us: Facebook - https://www.facebook.com/Channel4News/ Twitter - https://twitter.com/Channel4News