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Ontario Now Testing Asymptomatic People for Hantavirus; Low-Risk Cases to Stop Isolating if Negative

Officials said 26 low-risk contacts may end isolation after a negative test, while nine high-risk travellers remain in strict isolation.

  • On Friday, the Ontario Ministry of Health announced it is now testing 10 asymptomatic individuals linked to a hantavirus-stricken cruise, shifting from earlier government guidance.
  • Earlier this week, Ontario Health Minister Sylvia Jones cited guidance from the province's top doctor that asymptomatic testing was not appropriate, though officials now offer testing to support early detection.
  • Nine individuals remain in high-risk isolation across Alberta, British Columbia, and Ontario, while 26 low-risk contacts face a 45-day quarantine that they may shorten with a negative test.
  • Canada's Chief Public Health Officer Dr. Joss Reimer warned that testing asymptomatic individuals might create a "false sense of security," as officials balance gathering information with preventing unnecessary exposures.
  • The World Health Organization continues to monitor the Andes virus outbreak, as Dr. Maria Van Kerkhove noted symptoms can take six weeks to manifest; the WHO held an emergency scientific consultation Friday.
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The Ontario Ministry of Health is testing ten asymptomatic people with a connection to the cruise where the hantavirus has spread, marking a reversal from the government's earlier statements.

·Montreal, Canada
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Lean Left

Ontario is now testing for asymptomatic individuals related to a cruise ship affected by the hantavirus.

·Montreal, Canada
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City NewsCity News
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Center

Ontario now testing asymptomatic people for hantavirus; low-risk cases to stop isolating if negative

Ontario’s ministry of health says it is now testing 10 asymptomatic people with connections to a hantavirus-stricken cruise, a shift from government remarks made earlier this week.

·Toronto, Canada
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CBC News broke the news in Canada on Friday, May 15, 2026.
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