The new strain of coronavirus is a "a threat to the entire world," according to the director-general of the United Nations' World Health Organization.

A deadly new strain of coronavirus, a SARS-like respiratory virus, has now spread to France, where it has infected at least two people. But it gets even more exciting. After the French health ministry's confirmation of the second infection, the World Health Organization announced that it's likely that the virus can be passed person-to-person.