International travel and health :
International travel and health : Situation as on 1 January 2008 /
World Health Organization.
- Geneva : World Health Organization, 2008.
- ix, 227 p. : ill. ; 23 cm.
Includes bibliographical references
978-92-4-158040-3
Communicable disease control
Travel
Vaccination--standards
Risk assessment
Includes bibliographical references
978-92-4-158040-3
Communicable disease control
Travel
Vaccination--standards
Risk assessment