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Author

Karen O. Johnson

Observed names: K. Johnson, K. O. Johnson, Karen Johnson
ORCID: 0000-0001-5198-0502
Observed ORCID: 0000-0001-5198-0502
OpenAlex ID: A5019409766
A descriptive study of reportable gastrointestinal illnesses in Ontario, Canada, from 2007 to 2009
2012 · Linda Vrbova, Karen Johnson, et al. · BMC Public Health · 72
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Clinical manifestations of reported Lyme disease cases in Ontario, Canada: 2005–2014
2018 · Karen O. Johnson, Mark P. Nelder, et al. · PLoS ONE · 45
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Epidemiology of serogroup B invasive meningococcal disease in Ontario, Canada, 2000 to 2010
2012 · Vica Dang, Frances B Jamieson, et al. · BMC Infectious Diseases · 25
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2015 Outbreak of Cyclosporiasis Linked to the Consumption of Imported Sugar Snap Peas in Ontario, Canada
2017 · Yvonne Whitfield, Karen Johnson, et al. · Journal of Food Protection · 24
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Descriptive study of enteric zoonoses in Ontario, Canada, from 2010 – 2012
2017 · Yvonne Whitfield, Karen Johnson, et al. · BMC Public Health · 22
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Human Rabies Post‐Exposure Prophylaxis and Animal Rabies in Ontario, Canada, 2001–2012
2014 · D. Middleton, K. O. Johnson, et al. · Zoonoses and Public Health · 16
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Transmission Cluster of Multiclass Highly Drug-Resistant HIV-1 Among 9 Men Who Have Sex With Men in Seattle/King County, WA, 2005-2007
2008 · Susan E Buskin, Giovanina M Ellis, et al. · JAIDS Journal of Acquired Immune Deficiency Syndromes · 16
An outbreak of hepatitis A in Canada: The use of a control bank to conduct a case-control study
2019 · C. R. Smith, T. Kershaw, et al. · Epidemiology and Infection · 14
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Provincial implementation supports for socio-demographic data collection during COVID-19 in Ontario’s public health system
2021 · Samiya Abdi, Caroline Bennett-AbuAyyash, et al. · Canadian Journal of Public Health · 9
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Whole genome sequencing of increased number of azithromycin-resistant Shigella flexneri 1b isolates in Ontario
2023 · Alefiya Neemuchwala, Sandra Zittermann, et al. · Scientific Reports · 7
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A descriptive analysis of rabies post‐exposure prophylaxis data: 2013, Ontario, Canada
2017 · D. Middleton, J. J. Edwin, et al. · Zoonoses and Public Health · 7
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Spatiotemporal Dynamics and Demographic Profiles of Imported Plasmodium falciparum and Plasmodium vivax Infections in Ontario, Canada (1990–2009)
2013 · Mark P. Nelder, Curtis Russell, et al. · PLoS ONE · 7
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Association Between Cycle Threshold Value and Vaccination Status Among Severe Acute Respiratory Syndrome Coronavirus 2 Omicron Variant Cases in Ontario, Canada, in December 2021
2023 · Saranyah Ravindran, Jonathan B Gubbay, et al. · Open Forum Infectious Diseases · 5
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The epidemiology of cryptosporidiosis in Ontario, Canada following the introduction of PCR testing in 2018
2020 · Karen Johnson, Palvasha Thayani, et al. · Canada Communicable Disease Report · 3
Characterization of azithromycin-resistant Shigella flexneri serotype 2a isolates using whole genome sequencing in Ontario from 2016 to 2018
2024 · Alefiya Neemuchwala, Karen Johnson, et al. · Microbiology Spectrum · 2
Detection of non-travel-associated, ceftriaxone non-susceptible Neisseria gonorrhoeae FC428-like harbouring the mosaic penA60 allele in Ontario, Canada
2025 · Adam S Komorowski, Alireza Eshaghi, et al. · Canada Communicable Disease Report · 1
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Works count: 16
Citation count: 275
H-index: 9
I10-index: 8
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