Katherine Paphitis

Reptile Exposure in Human Salmonellosis Cases and Salmonella Serotypes Isolated from Reptiles, Ontario, Canada, 2015–2022

Katherine Paphitis, Alexandra Reid, Hannah R. Golightly, Janica Adams et autres

Reptile-associated outbreaks of human Salmonella infections are increasing in Canada, coinciding with a rise in the popularity of reptiles as pets. We conducted a retrospective analysis of surveillance data for human Salmonella case-patients in Ontario during 2015-2022. We compared serotypes and reptile …

Learnings from Separate Aconitum Poisonings in British Columbia and Ontario, Canada in 2022

Lorraine McIntyre, Stefanie Georgopoulos, Dorianna Simone, Emily Newhouse et autres

Background: Three aconitine poisoning events occurred in two Canadian provinces in 2022: one in British Columbia (BC) and two in Ontario (ON). Aconitine is a potent alkaloid found in several species of the plant Aconitum, containing cardiotoxins and neurotoxins. It is used …

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Age- and Sex-Specific Differences in Lyme Disease Health-Related Behaviors, Ontario, Canada, 2015–2022

Janica Adams, Victoria Osasah, Katherine Paphitis, Affan Danish et autres

We investigated differences in risk factors and preventive behaviors by age and sex among persons with reported Lyme disease in Ontario, Canada, during 2015-2022. Incidence rates peaked among children 5-9 and adults 50-79 years of age. Median age was higher for female …

Épidémiologie des infections de l'hépatite A sporadiques et associées à une éclosion en Ontario, Canada : un résumé descriptif, 2015–2022

Katherine Paphitis, Janica A Adams, Christine Navarro

Contexte : L'hépatite A est une maladie d'importance pour la santé publique, qui provoque généralement une infection aiguë et se résout spontanément La compréhension des facteurs de risque et des données démographiques associés aux infections individuelles et aux éclosions peut orienter la …

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Epidemiology of sporadic and outbreak-associated hepatitis A infections in Ontario, Canada: A descriptive summary, 2015–2022

Katherine Paphitis, Janica Adams, Christine Navarro

Background: Hepatitis A is a disease of public health significance that typically causes acute, self-limiting infection. Understanding the risk factors and demographics associated with individual infections and outbreaks can guide public health communication and interventions. Objective: To assess the number of hepatitis …

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Salmonella Vitkin Outbreak Associated with Bearded Dragons, Canada and United States, 2020–2022

Katherine Paphitis, Caroline Habrun, G. Sean Stapleton, Alexandra Reid et autres

N ontyphoidal Salmonella are consistently among the most commonly reported bacterial pathogens linked to enteric illness in Canada and the United States (1,2).In most cases, human infection is ultimately attributed to consumption of specific foods or to contact with animals (1,3,4).Persons usually …

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Investigating the association between socioeconomic and agricultural risk factors and the incidence of Salmonella Heidelberg and Salmonella Typhimurium in Ontario in 2015: A multi‐level ecological approach

Katherine Paphitis, David L. Pearl, Olaf Berke, Lise A. Trotz‐Williams

The incidence of salmonellosis, and other enteric zoonotic diseases, has been associated with various food and environmental exposures and socioeconomic factors. Increasingly, there is interest in exploring differences among serotypes of Salmonella to better inform public health prevention efforts. Consequently, we investigated …

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Backyard chickens - A cross-sectional survey of current and prospective backyard chicken owners in Ontario (2019-2021).

Katherine Paphitis, Devon Metcalf, J. Scott Weese

Objective: Chickens are a natural reservoir for zoonotic pathogens. Humans and pets may be at increased risk of illness due to contact with poultry, their eggs, and their environment. We aimed to identify any knowledge, attitude, or practice gaps among current and …

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Carbapenemase-producing Enterobacteriaceae admission screening practices in Canadian healthcare settings: A cross-sectional survey of respondents working in Canadian hospitals and long-term care facilities (2020)

Filip Pajtondziev, Katherine Paphitis

Background: Carbapenemase-producing Enterobacteriaceae (CPE) infections are difficult to treat and are associated with high mortality. This study investigated admission screening practices for CPE risk factors within Canadian acute care inpatient hospitals (herein referred to as hospitals) and long-term care facilities (LTCF), and …

Overview of common infection prevention and control infractions and complaints in personal service settings in Ontario in 2018: a descriptive analysis

Katherine Paphitis, David Ryding, Colin MacDougall, Sandra Callery et autres

Objectives Aesthetic services can pose a potential risk of infection to clients if instruments are not discarded or reprocessed after each use. Public health inspectors (PHIs) inspect personal service settings (PSS) to monitor compliance with infection prevention and control (IPAC) requirements. This …

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Beyond flu: Trends in respiratory infection outbreaks in Ontario healthcare settings from 2007 to 2017, and implications for non-influenza outbreak management

Katherine Paphitis, Camille Achonu, Sandra Callery, Jonathan B. Gubbay et autres

BACKGROUND: Outbreaks cause significant morbidity and mortality in healthcare settings. Current testing methods can identify specific viral respiratory pathogens, yet the approach to outbreak management remains general. OBJECTIVES: Our aim was to examine pathogen-specific trends in respiratory outbreaks, including how attack rates, …

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Au-delà de la grippe : Tendances des éclosions d’infections respiratoires dans les établissements de soins de santé de l’Ontario de 2007 à 2017, et implications pour la gestion des éclosions non grippales

Katherine Paphitis, Camille Achonu, Sandra Callery, Jonathan B. Gubbay et autres

Contexte : Les éclosions provoquent une morbidité et une mortalité importantes dans les établissements de soins de santé. Les méthodes de dépistage actuelles permettent de cerner des agents pathogènes respiratoires viraux spécifiques, mais l’approche de la gestion des éclosions reste générale. Objectifs …

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