He added that "all bets are off" for people who put themselves in overcrowded indoor spaces, where he said the virus can spread in a variety of ways, and that communities and authorities must work together to create safe areas.

The WHO also said on Friday (July 17) that it is forming a team of international experts to go to China to study the origins of the novel coronavirus, but that it will not be in place before the end of July.

Subscribe: http://smarturl.it/reuterssubscribe

Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled.

Get the latest news on: http://reuters.com/
Follow Reuters on Facebook: https://www.facebook.com/Reuters
Follow Reuters on Twitter: https://twitter.com/Reuters
Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en