Emerging Trends of Infectious Diseases in Canada

Special Issue Editor


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Guest Editor
Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC V5Z 1M9, Canada
Interests: climate change; travel health; migrant health; surveillance; OneHealth; vaccine-preventable diseases; tuberculosis; vector-borne diseases; neglected tropical diseases

Special Issue Information

Dear Colleagues,

Emerging trends in infectious diseases in Canada reveal a dynamic landscape influenced by climate change, global travel, close interactions with livestock or wild animals, and increased antimicrobial resistance. Rising global temperatures and altered ecosystems have expanded the geographic range for key vector-borne diseases such as Lyme disease, tick-borne illnesses like anaplasmosis and babesiosis, and West Nile virus. Furthermore, urbanization and travel have complicated the overlapping interactions between humans, intermediate hosts (e.g., livestock and rodents), and insect/arthropod vectors.

The resurgence of vaccine-preventable diseases post pandemic, including measles and pertussis, underscores the critical role of immunization programs to manage downstream impacts of vaccine hesitancy. The COVID-19 pandemic highlighted the need for robust public health infrastructure and preparedness to manage novel pathogens. Genomic surveillance and advanced diagnostics are enhancing the ability to detect and respond to outbreaks more swiftly.

Additionally, the ongoing opioid crisis and disruptions to comprehensive healthcare have exacerbated the spread of bloodborne infections like HIV, hepatitis C, and tuberculosis among vulnerable populations. Moreover, Canada's multicultural population requires tailored public health strategies to address its diverse healthcare needs and disparities. Ongoing research, active surveillance, and interdisciplinary collaboration for clinical guidelines are essential to mitigate the impact of these emerging infectious diseases.

Dr. Yazdan Mirzanejad
Guest Editor

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Keywords

  • zoonoses
  • climate change
  • travel health
  • migrant health
  • surveillance
  • CATMAT
  • OneHealth
  • vaccine-preventable diseases
  • tuberculosis
  • Lyme disease
  • tick-borne diseases
  • mosquito-borne diseases
  • vector-borne diseases
  • neglected tropical diseases

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Published Papers (1 paper)

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10 pages, 235 KiB  
Case Report
Acute Febrile Illness Accompanied by 7th and 12th Cranial Nerve Palsy Due to Lyme Disease Following Travel to Rural Ecuador: A Case Report and Mini-Review
by Teslin S. Sandstrom, Kumudhavalli Kavanoor Sridhar, Judith Joshi, Ali Aunas, Sheliza Halani and Andrea K. Boggild
Trop. Med. Infect. Dis. 2025, 10(1), 21; https://doi.org/10.3390/tropicalmed10010021 - 14 Jan 2025
Viewed by 610
Abstract
The causative agent of Lyme disease, Borrelia burgdorferi, is endemic to Canada, the northeastern United States, northern California, and temperate European regions. It is rarely associated with a travel-related exposure. In this report, we describe a resident of southern Ontario, Canada who [...] Read more.
The causative agent of Lyme disease, Borrelia burgdorferi, is endemic to Canada, the northeastern United States, northern California, and temperate European regions. It is rarely associated with a travel-related exposure. In this report, we describe a resident of southern Ontario, Canada who developed rash, fever, and cranial nerve VII and XII palsies following a 12 day trip to Ecuador and the Galapagos islands approximately four weeks prior to referral to our center. Comprehensive microbiological work-up was notable for reactive Borrelia burgdorferi serology by modified two-tier testing (MTTT), confirming a diagnosis of Lyme disease. This case highlights important teaching points, including the classic clinical presentation of acute Lyme disease with compatible exposure pre-travel in a Lyme-endemic region of Ontario, initial manifestations during travel following acquisition of arthropod bites in Ecuador, and more severe manifestations post-travel. Given the travel history to a South American country in which Lyme disease is exceedingly uncommon, consideration of infections acquired in Ecuador necessitated a broad differential diagnosis and more comprehensive microbiological testing than would have been required in the absence of tropical travel. Additionally, cranial nerve XII involvement is an uncommon feature of Lyme neuroborreliosis, and therefore warranted consideration of an alternative, non-infectious etiology such as stroke or a mass lesion, both of which were excluded in this patient through neuroimaging. Full article
(This article belongs to the Special Issue Emerging Trends of Infectious Diseases in Canada)
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