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Research

Surveillance report of Zika virus among Canadian travellers returning from the Americas

Andrea K. Boggild, Jennifer Geduld, Michael Libman, Cedric P. Yansouni, Anne E. McCarthy, Jan Hajek, Wayne Ghesquiere, Yazdan Mirzanejad, Jean Vincelette, Susan Kuhn, Pierre J. Plourde, Sumontra Chakrabarti, David O. Freedman and Kevin C. Kain
CMAJ March 06, 2017 189 (9) E334-E340; DOI: https://doi.org/10.1503/cmaj.161241
Andrea K. Boggild
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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  • For correspondence: andrea.boggild@utoronto.ca
Jennifer Geduld
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Michael Libman
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Cedric P. Yansouni
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Anne E. McCarthy
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Jan Hajek
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Wayne Ghesquiere
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Yazdan Mirzanejad
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Jean Vincelette
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Susan Kuhn
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Pierre J. Plourde
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Sumontra Chakrabarti
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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David O. Freedman
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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Kevin C. Kain
Department of Medicine (Boggild, Chakrabarti, Kain), Tropical Disease Unit, Division of Infectious Diseases, University Health Network and University of Toronto; Public Health Ontario Laboratories (Boggild), Public Health Ontario, Toronto, Ont.; Office of Border and Travel Health (Geduld), Public Health Agency of Canada, Ottawa, Ont.; The J.D. MacLean Centre for Tropical Diseases (Libman, Yansouni), McGill University, Montréal, Que.; Tropical Medicine and International Health Clinic (McCarthy), Division of Infectious Diseases, Ottawa Hospital and University of Ottawa, Ottawa, Ont.; Division of Infectious Diseases (Hajek, Mirzanejad), University of British Columbia, Vancouver, BC; Infectious Diseases (Ghesquiere), Vancouver Island Health Authority, Victoria, BC; Department of Medicine (Ghesquiere), University of British Columbia, Vancouver, BC; Fraser Health (Mirzanejad), Surrey, BC; Hôpital Saint-Luc du CHUM (Vincelette), Université de Montréal, Montréal, Que.; Departments of Pediatrics and Medicine (Kuhn), Section of Pediatric Infectious Diseases, Alberta Children’s Hospital and University of Calgary, Calgary, Alta.; Travel Health and Tropical Medicine Services (Plourde), Population and Public Health Program, Winnipeg Regional Health Authority, Winnipeg, Man.; Trillium Health Partners (Chakrabarti), Mississauga, Ont.; Department of Medicine (Freedman), Center for Geographic Medicine, University of Alabama Birmingham, Birmingham, Ala.; SAR Laboratories (Kain), Sandra Rotman Centre, Toronto, Ont.
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  • Figure 1:
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    Figure 1:

    Distribution of 41 cases of Zika virus infection by month of acquisition among ill travellers presenting for care at a CanTravNet site from October 2015 to September 2016.

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    Table 1:

    Demographic characteristics of 41 ill travellers presenting to a CanTravNet site for care of Zika virus acquired in the Americas, October 2015 to September 2016*

    CharacteristicAcquisition period; no. (%) of travellers with Zika virus infection†p value‡
    Total
    n = 41
    October 2015 to March 2016
    n = 13
    April to September 2016
    n = 28
    Sex0.7
     Male17 (41)6 (46)11 (39)
     Female24 (59)7 (54)17 (61)
    Age, yr, median (range)36 (13–70)36 (18–54)35 (13–70)0.8
    Reason for travel
     Tourism17 (41)4 (31)13 (46)0.5
     Visiting friends and relatives15 (37)7 (54)8 (29)0.2
     Business4 (10)0 (0)4 (14)0.3
     Missionary/aid work4 (10)2 (15)2 (7)0.6
     Education1 (2)0 (0)1 (4)1.0
    Region of acquisition
     Caribbean22 (54)4 (31)18 (64)0.09
     Central America10 (24)2 (15)8 (29)0.5
     South America8 (20)7 (54)1 (4)< 0.001
     North America1 (2)0 (0)1 (4)1.0
    • ↵* The total cohort comprised 1118 travellers returning from the Americas between Oct. 1, 2015, and Sept. 30, 2016.

    • ↵† Unless stated otherwise.

    • ↵‡ Comparison between first half of study period (October 2015 to March 2016) and latter half (April to September 2016). Categorical variables were compared by means of Fisher exact test, and continuous variables were compared by means of Mann–Whitney Rank sum test.

    • View popup
    Table 2:

    Presenting symptoms of ill travellers with Zika virus infection or dengue who presented to a CanTravNet site, October 2015 to September 2016

    SymptomDiagnosis; no. (%) of travellers
    Zika virus
    n = 41
    Dengue
    n = 41
    Any rash36 (88)15 (37)
    Fever33 (80)36 (88)
    Diffuse rash29 (71)12 (29)
    Arthralgia22 (54)12 (29)
    Myalgia19 (46)20 (49)
    Fatigue19 (46)9 (22)
    Headache17 (41)18 (44)
    Focal rash7 (17)3 (7)
    Conjunctivitis5 (12)0 (0)
    Diarrhea5 (12)7 (17)
    Cough4 (10)4 (10)
    Arthritis3 (7)2 (5)
    Paresthesia2 (5)0 (0)
    Dyspnea1 (2)1 (2)
    Epididymitis1 (2)0 (0)
    Sore throat1 (2)0 (0)
    Nausea1 (2)4 (10)
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Canadian Medical Association Journal: 189 (9)
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Surveillance report of Zika virus among Canadian travellers returning from the Americas
Andrea K. Boggild, Jennifer Geduld, Michael Libman, Cedric P. Yansouni, Anne E. McCarthy, Jan Hajek, Wayne Ghesquiere, Yazdan Mirzanejad, Jean Vincelette, Susan Kuhn, Pierre J. Plourde, Sumontra Chakrabarti, David O. Freedman, Kevin C. Kain
CMAJ Mar 2017, 189 (9) E334-E340; DOI: 10.1503/cmaj.161241

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Surveillance report of Zika virus among Canadian travellers returning from the Americas
Andrea K. Boggild, Jennifer Geduld, Michael Libman, Cedric P. Yansouni, Anne E. McCarthy, Jan Hajek, Wayne Ghesquiere, Yazdan Mirzanejad, Jean Vincelette, Susan Kuhn, Pierre J. Plourde, Sumontra Chakrabarti, David O. Freedman, Kevin C. Kain
CMAJ Mar 2017, 189 (9) E334-E340; DOI: 10.1503/cmaj.161241
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