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Travel-acquired infections in Canada: CanTravNet 2011-2012
A K Boggild1,2, J Geduld3, M Libman4
1Tropical Disease Unit, Department of Medicine, University Health Network and the University of Toronto, Toronto, ON.
Summary
Canadian travellers frequently contract preventable infectious diseases like malaria and enteric fever, alongside emerging infections. Enhanced preventive strategies, including immunizations and arthropod/animal avoidance, are crucial for traveler health.
Area of Science:
- Infectious Diseases
- Travel Medicine
- Public Health Surveillance
Background:
- Gaps exist in understanding infectious diseases acquired during travel and their impact on Canadian travelers.
- Surveillance data on imported pathogens is essential for public health.
Purpose of the Study:
- To update surveillance data on illnesses in returned Canadian travelers and new immigrants.
- To analyze the spectrum of travel-related infectious diseases and their severity.
Main Methods:
- Analysis of data from CanTravNet sites (September 2011-September 2012).
- Data extraction and analysis by destination, symptoms, infectious diseases, and severity.
- Inclusion of returning travelers and new immigrants.
Main Results:
- 2283 individuals presented; 88% had travel-related diagnoses.
- Top destinations: India, Mexico, Cuba.
- 51 malaria cases (30 Plasmodium falciparum), 9 HIV, 6 Hepatitis E, 4 chikungunya, 16 cutaneous leishmaniasis.
- Gastrointestinal, dermatologic, and fever were common complaints.
- Malaria and travel to visit friends/relatives were associated with higher inpatient rates.
Conclusions:
- Analysis provides a current overview of imported illnesses in Canadian travelers.
- Preventable illnesses include malaria, enteric fever, HIV, hepatitis B, and animal bites.
- Improved uptake of preventive measures (chemoprophylaxis, immunizations, avoidance) is recommended.
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