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Voices/CBC News/Study: Contagious cancer is spreading among catfish

CBC News

@CBCNews·4.7M subscribers·47K videos

Study: Contagious cancer is spreading among catfish

Posted

July 23, 2026

Views

4,223

Likes

106

Engagement

2.51%

Study: Contagious cancer is spreading among catfish · CBC News · Sentinel

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YouTube Description

as posted by the channel

A new study has shown that fish near the Quebec-Vermont border may have been catching a transmissible cancer from each other for more than a decade. Anglers have reported black lesions on the fish that have now been identified as melanoma skin cancer — the kind that's linked to sun exposure in people.

Quebec's Ministry of the Environment recommends not eating the fish with tumours, even though there's no evidence it's harmful to human health. Dragon said Vermonters sometimes do eat them and she believes they're safe to eat.

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For more than 80 years, CBC News has been the source Canadians turn to, to keep them informed about their communities, their country and their world. Through regional and national programming on multiple platforms, including CBC Television, CBC News Network, CBC Radio, CBCNews.ca, mobile and on-demand, CBC News and its internationally recognized team of award-winning journalists deliver the breaking stories, the issues, the analyses and the personalities that matter to Canadians.

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