Beach danger? new study tracks illness from toxic algae
NCT ID NCT06579170
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study follows 2,500 people who visit freshwater beaches in Ontario, Manitoba, and Nova Scotia to see if contact with water containing blue-green algae (cyanobacteria) leads to stomach bugs, respiratory issues, or skin/eye infections. Researchers will also track illness in pet dogs. The goal is to understand the real-world health risks from these increasingly common algal blooms.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this could provide the first solid data on how often blue-green algae at beaches makes people sick, helping guide public health warnings.
What could go wrong
This is an observational study, not a treatment trial. It only measures illness rates and cannot prove cause and effect. Results may vary by beach and year.
Disclaimer
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Colchester Beach
Windsor, Ontario, N0R 1G0, Canada
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Grand Beach
Winnipeg, Manitoba, R0E 0T0, Canada
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Kinsmen beach
Port Perry, Ontario, L9L 1R2, Canada
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Shubenacadie Canal
Halifax, Nova Scotia, B2X 2W5, Canada