The world is facing "formidable" challenges, including Covid, the war in Ukraine and monkeypox, the head of the World Health Organization has warned.
Tedros Adhanom Ghebreyesus was speaking in Geneva, where the UN health agency's experts were discussing the monkeypox outbreak in 15 nations outside Africa.
More than 80 cases have been confirmed in Europe, the US, Canada, Australia and Israel. However, the risk to the wider public is said to be low.
Monkeypox - the virus that is most common in remote parts of Central and West Africa - does not tend to spread easily between people and the illness is usually mild.
It is not yet clear why this unexpected outbreak is happening now.
One possibility is that the virus has changed in some way, although currently there is little evidence to suggest this is a new variant.
Another explanation is that the virus has found itself in the right place at the right time to thrive.
Monkeypox may also spread more easily than it did in the past, when the smallpox vaccine was widely used.