The World Health Organisation says herd immunity is not an option for Coronavirus and it's doing its best to get a safe and effective vaccine.
In its latest briefing the organisation says it will soon send a team to Wuhan to investigate the origin of the virus.
Organisation technical lead for Covid-19, Dr Maria van Kerkhove says to achieve population immunity through a vaccine about 70 per cent of the world's population would need to be vaccinated.
