is a network of travel/tropical medicine clinics initiated in
1995 by the International Society of Travel Medicine (ISTM) and
the Centers for Disease Control (CDC). Surveillance of morbidity
and mortality in travelers serves a number of purposes. Firstly,
it provides information to assist in the prevention of morbidity
in travelers. Secondly travelers can serve as sentinels for
changes that affect the morbidity and mortality of local
populations. Thirdly, travelers can be a factor in the spread of
diseases in their countries of origin. GeoSentinel is based on
the concept that these clinics are ideally situated detect
geographic and temporal trends in morbidity among travelers,
immigrants and refugees. Clinics can be affiliated with in one
of two ways, as a GeoSentinel Site, or in a more informal manner
as a GeoSentinel Network Member. an international communications
and data collection network of travel medicine clinics on all
continents (except Antarctica), including real-time web-
conferencing geographic and