Statement from Julia Levin, Associate Director, National Climate, Environmental Defence Ottawa | Traditional, unceded territory of the Algonquin

The Great Barrington Declaration’s advocacy for naturally acquired herd immunity to COVID-19 amounts to a global chickenpox party: naive and dangerous.

As wildfires and smoke become more frequent and widespread due to climate change, news coverage needs to be more creative, comprehensive, and anticipatory.

Millions of Americans and Canadians are breathing bad air right now due to wildfire smoke. Here’s what you need to know masks, ventilation and staying healthy.

The question of whether SARS-CoV-2 is mainly transmitted by droplets or aerosols has been highly controversial. We sought to explain this controversy through a historical analysis of transmission res...

The decision to drive an unmarked car into the two men was a "substantial and grave" breach of Charter rights, a judge found.

Modeling the impact of health care worker masking to reduce nosocomial SARS-CoV-2 transmission under varying adherence, prevalence, and transmission settings. - Volume 46 Issue 8

Learn about cyclosporiasis, its causes, symptoms, risks, treatment and prevention. Also find information on surveillance and guidance for health professionals.

Stale Solbakken said some of his squad have been 'coughing and rasping', sparking concerns of illness among Norway's team before they take on England.

Guidance and information about high consequence infectious diseases and their management in England.

The multinational outbreak of Andes hantavirus (ANDV) linked to cruise ship travel should prompt the World Health Organization (WHO) to change its default response to the risk of airborne transmission of the virus. Hantavirus is a pathogen with documented person-to-person transmission and high case fatality. Therefore, the starting point should not be to downplay the risk of airborne transmission until it is definitively proven. The starting point should be the immediate adoption of precautionary measures to reduce airborne transmission, such as respirator use by healthcare workers, cases, and close contacts; ventilation optimisation; avoidance of unfiltered air recirculation; and portable HEPA (high efficiency particulate air) filtration in all enclosed quarantine and transport settings. On 8 May 2026, WHO issued several documents that point in different directions. A Disease Outbreak News report acknowledged possible person-to-person transmission, but largely framed precautions around droplet and contact transmission outside aerosol generating procedures.1 By contrast, WHO’s guidance for managing contacts of Andes virus cases and disembarkation from the cruise ship adopted much more precautionary measures, including quarantine, universal respirator use during disembarkation, respirators for healthcare workers …

Judge Mustafa T. Kasubhai vacated the “Kennedy Declaration,” finding it unlawfully attempted to override medical standards and restrict care for transgender youth.

Scientists caution that more research is needed, but nearly all of the patients who responded to the personalized vaccine are still alive six years later.