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Volume 29, Number 10—October 2023
Research Letter

Plasmodium knowlesi Infection in Traveler Returning to Canada from the Philippines, 2023

Calvin Ka-Fung Lo, Katherine Plewes, Sakuntla Sharma, Alicia Low, LingHui D. Su, Sara Belga, Ferdinand V. Salazar, Jan Hajek, Muhammad Morshed, and Catherine A. HoganComments to Author 
Author affiliations: University of British Columbia, Vancouver, British Columbia, Canada (C. Ka-Fung Lo, K. Plewes, S. Belga, J. Hajek, M. Morshed, C.A. Hogan); Mahidol–Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand (K. Plewes); Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK (K. Plewes); British Columbia Centre for Disease Control, Vancouver (S. Sharma, A. Low, L.D. Su, M. Morshed, C.A. Hogan); Research Institute of Tropical Medicine, Muntinlupa, the Philippines (F.V. Salazar)

Main Article

Table

Summary of published Plasmodium knowlesi cases in North America imported from the Philippines*

Patient age, y Patient sex Year Geographic location presented Region of Philippines traveled Diagnosis Treatment
50 F 2008 (2) New York, NY, USA Palawan PCR failed to identify species; confirmed by 1055-bp PCR product sequencing Atovaquone/proguanil and primaquine
NA NA 2018 (7) NA NA PCR Atovaquone/proguanil
55 M 2023 (this case) Vancouver, British Columbia, Canada Palawan PCR; confirmed by 118-bp PCR sequencing Atovaquone/proguanil

*NA, not available.

Main Article

Page created: August 15, 2023
Page updated: September 20, 2023
Page reviewed: September 20, 2023
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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