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Bed bugs back in view
November 29, 2023
In 2023, widespread reporting of bed bug infestations in France and South Korea, alongside frenzied social media attention, has raised the profile of these troublesome arthropods once again. Bed bugs…
Bed bugs
November 10, 2023
Bed bugs (Cimex lectularius) are small, elusive, and resilient wingless insects that feed on the blood of mammals, including humans. They are reddish-brown and range in length from eggs of about 1mm…
We don’t need a better rat trap: Reconceptualising municipal rat management
September 29, 2022
Urban rats are an important issue globally. Despite ongoing efforts to manage rats, they continue to flourish in cities, indicating that municipalities have not been able to find or widely implement…
Environmental public health guidance for encampments during the COVID-19 pandemic
July 29, 2020
To prevent the transmission of SARS-CoV-2, the coronavirus that causes COVID-19, public health guidance promotes physical distancing, staying home when ill, good hand hygiene and environmental…
Canadian Databases for Ticks and Mosquitoes
June 24, 2022
The NCCID and NCCEH have compiled a list of provincial and territorial mosquito and tick datasets including what information the databases contain and who to contact to access the data. This dataset…
Building shutdown and re-opening during the COVID-19 pandemic
February 11, 2021
[Last Updated: Feb 11, 2021] During the ongoing COVID-19 pandemic, it may be necessary to periodically close public buildings and facilities, followed by re-opening when safe again. Periods of low…
Neonicotinoid pesticides
January 21, 2020
Neonicotinoids (also referred to as “neonics”) are insecticides derived from nicotine. They act by binding strongly to nicotinic acetylcholine receptors in the central nervous system of insects,…
Pesticide exposure in the urban environment
June 5, 2018
Pesticides are chemicals developed to prevent or destroy unwanted species including insects (insecticides) and weeds (herbicides). Organochlorines and organophosphates, developed prior to the 1960s…
Case Study: Herbicide Use in Wild Parsnip and Giant Hogweed Control
January 22, 2020
The document was developed in response to a request from the Leeds, Grenville & Lanark District Health Unit to assist with addressing public concerns about the use of herbicides to control…
Controlling giant hogweed: the scope of a concerted regional intervention
March 29, 2019
Giant hogweed is an invasive alien plant that can severely burn the skin. The plant is not yet very prevalent in Bas-SaintLaurent, and intervention in the region to date has focused on eradicating it…