Coronavirus emergency is 'Public Enemy Number 1' - WHO

FILE PHOTO: A logo is pictured outside a building of the World Health Organization (WHO) during an executive board meeting on update on the coronavirus outbreak, in Geneva, Switzerland, February 6, 2020. REUTERS/Denis Balibouse

GENEVA (Reuters) - China's coronavirus outbreak poses a "very grave threat for the rest of the world" and should be viewed as "Public Enemy Number 1", the head of the World Health Organization (WHO) said on Tuesday.

WHO director-general Tedros Adhanom Ghebreyesus urged countries to step up measures to detect and contain the virus, especially in at least 30 countries with weaker health systems, where it could "create havoc".