Switzerland recorded its first confirmed case on Saturday. Israel also reported its first cases – a man in his 30s who had returned from a trip to Western Europe.
It comes after Spain, Portugal, Italy, Sweden, and Canada all reported infections in the past week, mostly in young men who hadn’t previously travelled to Africa.
France, Belgium, and Australia reported their first cases on Friday.
What is driving the spread?
David Heymann, an infectious disease specialist at the World Health Organisation, said he believed the viral infection had entered the population as a “sexual form”.