Dataset Information

Surveillance of laboratory exposures to human pathogens and toxins: Canada 2016.

ABSTRACT: Background:Canada recently enacted legislation to authorize the collection of data on laboratory incidents involving a biological agent. This is done by the Public Health Agency of Canada (PHAC) as part of a comprehensive national program that protects Canadians from the health and safety risks posed by human and terrestrial animal pathogens and toxins. Objective:To describe the first year of data on laboratory exposure incidents and/or laboratory-acquired infections in Canada since the Human Pathogens and Toxins Regulations came into effect. Methods:Incidents that occurred between January 1 and December 31, 2016 were self-reported by federally-regulated parties across Canada using a standardized form from the Laboratory Incident Notification Canada (LINC) surveillance system. Exposure incidents were described by sector, frequency of occurrence, timeliness of reporting, number of affected persons, human pathogens and toxins involved, causes and corrective actions taken. Microsoft Excel 2010 was used for basic descriptive analyses. Results:In 2016, 46 exposure incidents were reported by holders of 835 active licences in Canada representing 1,352 physical areas approved for work involving a biological agent, for an overall incidence of 3.4%. The number of incidents was highest in the academic (n=16; 34.8%) and hospital (n=12; 26.1%) sectors, while the number of reported incidents was relatively low in the private industry sector. An average of four to five incidents occurred each month; the month of September presented as an outlier with 10 incidents.?: A total of 100 people were exposed, with no reports of secondary exposure. Four incidents led to suspected (n=3) or confirmed (n=1) cases of laboratory-acquired infection. Most incidents involved pathogens classified at a risk group 2 level that were manipulated in a containment level 2 laboratory (91.3%). Over 22 different species of human pathogens and toxins were implicated, with bacteria the most frequent (34.8%), followed by viruses (26.1%). Eleven (23.9%) incidents involved a security sensitive biologic agent. Procedure breaches (n=15) and sharps-related incidents (n=14) were the most common antecedents to an exposure. In 10 (21.7%) cases, inadvertent possession (i.e., isolation of an unexpected biological agent during routine work) played a role. Possible improvements to standard operating procedures were cited in 71.7% of incidents. Improvements were also indicated for communication (26.1%) and management (23.9%). Conclusions:The Laboratory Incident Notification Canada is one of the first surveillance systems in the world to gather comprehensive data on laboratory incidents involving human pathogens and toxins. Exposure incidents reported in the first year were relatively rare, occurring in less than 4% of containment zones within laboratory settings.

SUBMITTER: Bienek A

PROVIDER: S-EPMC5764741 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Surveillance of laboratory exposures to human pathogens and toxins: Canada 2016.

Bienek A A Heisz M M Su M M

Canada communicable disease report = Releve des maladies transmissibles au Canada 20171102 11

<h4>Background</h4>Canada recently enacted legislation to authorize the collection of data on laboratory incidents involving a biological agent. This is done by the Public Health Agency of Canada (PHAC) as part of a comprehensive national program that protects Canadians from the health and safety risks posed by human and terrestrial animal pathogens and toxins.<h4>Objective</h4>To describe the first year of data on laboratory exposure incidents and/or laboratory-acquired infections in Canada sin ...[more]

PMID: 29770052

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Project description:Background:Under Canada's Human Pathogens and Toxins Act and Human Pathogens and Toxins Regulations, the Public Health Agency of Canada (PHAC) is mandated with monitoring laboratory incident notifications through the Laboratory Incident Notification Canada (LINC) surveillance system. The year 2017 marks the second complete year of data. Objective:To describe the laboratory exposure and laboratory-acquired infection incidents that occurred in Canada in 2017 by sector, human pathogens and toxins involved, number of affected persons, incident type and root causes. Methods:The incidents included in the analysis occurred between January 1 and December 31, 2017. They were reported by laboratories with active licences to PHAC through the LINC surveillance system. Microsoft Excel 2010 was used for basic descriptive statistics. Results:A total of 44 exposure and laboratory-acquired infection incidents were reported to the LINC in 2017. Compared by sector and their respective shares of licences, the number of incidents was highest in the academic and hospital sectors compared with government laboratories and private industry. Altogether 118 people were exposed for an average of 2.7 people per incident (range of 1-29). There were no reports of secondary exposure. Six exposure incidents (14%) led to "suspected" (n=5) or confirmed (n=1) cases of laboratory-acquired infection. Although overall, risk group (RG)2 human pathogens and toxins were involved in the majority of incidents (n=23; 52%), Francisella tularensis (n=4; 9%) and Coccidioides immitis (n=3; 7%) were the most frequently involved in reported exposure incidents. These two pathogens are both RG3 and security-sensitive biological agents (SSBAs). An average of 2.3 root causes were identified per incident (n=101). Problems with standard operating procedures (SOPs) and human error were the two most common causes. Conclusion:The incidence of laboratory exposure incidents was relatively low in 2017. The most common route of exposure was through inhalation and the most common root causes were problems with SOPs and human error. Since this is a new surveillance system, baseline estimates are still being established.

Project description:BackgroundVertical HIV transmission has declined in Canada, but missed opportunities for prevention continue to occur. We sought to determine the adequacy, and changes over time in adequacy, of uptake of maternal and neonatal antiretroviral therapy for the prevention of vertical HIV transmission, and to determine the vertical transmission rate over time and according to adequacy of antenatal antiretroviral therapy during the combination antiretroviral therapy era in Canada.MethodsThe Canadian Perinatal HIV Surveillance Program collects data annually through retrospective chart review concerning HIV-infected women and their infants. We determined receipt of adequate antiretroviral treatment (antenatal combination antiretroviral treatment for ≥ 4 wk, intrapartum intravenous zidovudine treatment and 4-6 wk of infant oral zidovudine treatment) and predictors of inadequate antenatal combination antiretroviral therapy (none or < 4 wk) in Canada in 1997-2016.ResultsWe identified 3785 mother-infant pairs. Uptake of 4 weeks or more of antenatal combination antiretroviral therapy increased over time across all provinces/territories and regardless of maternal race/ethnicity or risk category (p < 0.001). During 2011-2016, 92 women (6.5%) received no or less than 4 weeks of antenatal combination antiretroviral therapy, 146 women (10.7%) received no intrapartum zidovudine treatment, and 43 infants (3.1%) received less than 4 weeks of zidovudine treatment. In multivariate analysis restricted to 2011-2016, higher uptake of adequate antenatal combination antiretroviral therapy was seen among black women than among Indigenous (odds ratio [OR] 2.99, 95% confidence interval [CI] 1.23-7.26) or white (OR 1.87, 95% CI 0.99-1.27) women and in British Columbia/Yukon Territory than in Alberta (OR 3.31, 95% CI 1.06-10.32), Ontario (OR 3.16, 95% CI 1.08-9.26) or Quebec (OR 3.44, 95% CI 1.09-10.84). Among the 14 vertical HIV transmission events during 2011-2016 (vertical transmission rate 1.0%), maternal HIV infection was diagnosed before the onset of labour in 5 cases, and only 2 women received adequate antenatal combination antiretroviral therapy.InterpretationEfforts to improve timely access to care, HIV screening and treatment for all women, combined with enhanced resources targeting populations at increased risk for HIV infection, will be needed if vertical HIV transmission is to be eliminated in Canada.

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Surveillance of laboratory exposures to human pathogens and toxins: Canada 2016.

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Surveillance of laboratory exposures to human pathogens and toxins: Canada 2016.

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