FILE PHOTO: Director-General of the World Health Organization (WHO) Tedros Adhanom Ghebreyesus speaks at the annual Munich Security Conference in Germany February 15, 2020. REUTERS/Andreas Gebert
VIENNA (Reuters) - The World Health Organization (WHO) is concerned about the number of coronavirus cases with no clear epidemiological link, although the total number of cases outside China remains relatively small, its director general said on Saturday.
Cases with no clear link include those with no travel history to China or contact with a confirmed case, Tedros Adhanom Ghebreyesus said on Twitter.
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