Global TravEpiNet (GTEN) is a network of travel clinics across the United States. The network is aimed at improving the health of those who travel internationally and is supported by the Centers for Disease Control and Prevention.

GeoSentinel is a worldwide communication and data collection network for the surveillance of travel-related morbidity. These clinics are ideally situated to effectively detect geographic and temporal trends in morbidity among travelers, immigrants and refugees. It is supported by the Centers for Disease Control and Prevention as an ISTM member.