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At the Research center of the Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Professor Caroline Duchaine’s team studies bioaerosols and their effects on the respiratory health  of exposed humans.

First, the term aerosol refers to solids or inert liquids in any gas, usually air. Bioaerosols are, in turns, aerosols composed of solid or liquid particles from 0.002 microns to 100μm carrying live microorganisms or molecules derived from living organisms (viruses, bacteria, fungi, microalgae, pollen, animal hair, plant fragments, etc.). The effects of aerosols and bioaerosols on human health are thus very different. Some infectious diseases can be transmitted by bioaerosols.

More precisely, we are interested in :

The development of detection methods for airborne respiratory pathogens using molecular biology, the exposure to mycobacteria in the workplace, the air quality in agricultural environments and the respiratory health of workers, the microbial ecology of metal working fluids and allergic alveolitis, the detection of bioterrorism agents, the detection of antibiotic resistance genes using in situ hybridization, and the aerovirology.

RESEARCHES in progress

- Airborne human pathogens and antibiotic and metal resistance genes in swine confinement buildings and the nasopharyngeal flora of workers (Jonathan Pilote, Valérie Létourneau, Caroline Duchaine)

- Workers exposure to bioaerosols in biomethanisation facilities (Marie-Eve Dubuis, Marc Veillette, Caroline Duchaine)

Occupational exposure to viral aerosols in water treatment plants : metagenomic and molecular detection (Evelyne Brisebois, Marc Veillette, Caroline Duchaine)

- Development of a next-generation DNA sequencing method for studying fungal diversity in bioaerosols (Hamza Mbareche, Marc Veillette, Caroline Duchaine)

- Bioaerosol in water treatment plants : risk evaluation of bacterial exposure by using molecular biological tools (Vanessa Dion Dupont, Marc Veillette, Caroline Duchaine)

- Bioexclusion and biocontainment strategies in pig farms to control epidemics resulting from airborne viral and bacterial transmission (Valérie Létourneau, Caroline Duchaine, Christian Klopfenstein)

- Streptococcus suis exposure in agricultural environments (Laetitia Bonifait, Marc Veillette, Caroline Duchaine)

- Health risks for workers exposed to compost bioaerosols (Laetitia Bonifait, Marc Veillette, Caroline Duchaine)


Other researches...




Members from Caroline Duchaine's team have presented their studies or will do during these events :


Some of our studies have been presented at the 4th Workplace and Indoor Aerosols conference (April 20-22, 2016, Barcelona, Spain) :

- A next generation sequencing approach for the study of fungal diversity in bioaerosols (Hamza M'Bareche, MSc student)

- Worker’s exposure to bioaerosols in biomethanisation facilities (Marie-Eve Dubuis, MSc student)

- Assessment of workers' exposure to bioaerosols in wastewater treatment plants: evaluation of the bacterial risk by the use of molecular biology tools (Vanessa Dion Dupont, MSc student)

Bioaerosols exposure in indoor composting installations: classical and molecular approaches and preferential aerosolization (Marc Veillette, research associate)