California Gov. Gavin Newsom (D) announced just one day after the U.S. officially withdrew from the World Health Organization (WHO) that his state would become the first to join the organization’s Global Outbreak Alert and Response Network, in a seeming rebuke of the Trump administration’s withdrawal from international collaborations.

Newsom traveled this week to the World Economic Forum in Davos, Switzerland, where he was scheduled to speak at an event but was canceled at the last moment. During his trip, he met with WHO Director-General Tedros Adhanom Ghebreyesus.