The Netherlands has confirmed its first case of monkeypox.

The Netherlands confirmed its first monkeypox case on Friday, and more cases are expected following similar cases in other parts of Europe, according to Dutch health experts.

“After the weekend, we will provide an update on any new infections that have become known,” researchers from the National Institute of Public Health and the Environment said.

“Several people in Europe tested positive for this disease in recent days,” said the institute, noting cases in Portugal, the United Kingdom, and Belgium, among others.

Monkeypox is a pox virus that primarily affects West and Central African countries. The virus is common in wild animals such as rodents and primates, but humans can contract it as well.

Symptoms include fever, headache, muscle ache, backache, swollen lymph nodes, chills, and exhaustion. A rash usually appears. The rash eventually forms a scab, which falls off, indicating that the person is no longer infectious.