Two children have been diagnosed with monkeypox in the US, health officials said on Friday.
One is a toddler in California and the other an infant who is not a US resident, according to the Centres for Disease Control and Prevention (CDC).
The children were described as being in good health and receiving treatment. How they caught the disease is being investigated, but officials think it was through household transmission. Other details weren't immediately disclosed.
Monkeypox is endemic in parts of Africa, but this year more than 15,000 cases have been reported in countries that historically don't see the disease. In the US and Europe, the vast majority of infections have happened in men who have sex with men, though health officials have stressed anyone can catch the virus.
In Europe, there have been at least six monkeypox cases among kids 17 and younger.