Health Experts Warn Against Cleaning Rodent Droppings Incorrectly After Deadly Hantavirus Cases

Health experts are urging people to take precautions while cleaning rodent-infested spaces after a deadly hantavirus outbreak linked to a cruise ship off the coast of Africa renewed global attention on the disease.

The outbreak reportedly involved the rare Andes strain of hantavirus, a version known for its ability to spread between humans — unlike most other hantavirus strains.

Top Summary

• What happened: Experts issued warnings about hantavirus risks linked to rodent droppings after a deadly outbreak abroad.
• Why it matters now: Spring cleaning and reopening seasonal buildings can increase exposure risk to contaminated rodent waste.
• What changes for people: Health officials are advising safer cleaning methods to avoid inhaling airborne virus particles.
• Who is affected: Homeowners, cottage owners, garage users and people cleaning rodent-infested spaces.

According to reports, three people connected to the cruise ship outbreak died after exposure to the Andes strain of hantavirus.

However, Canadian health officials stressed that the strain linked to the outbreak is different from the virus commonly found in Canada.

David Safronetz said the primary hantavirus strain detected in Canada is the Hantavirus Pulmonary Syndrome associated with the Sin Nombre virus.

He noted that cases in Canada remain very rare, with roughly five to ten infections reported nationwide annually, mostly in western regions.

Experts say the risk of exposure increases during spring and early summer when people reopen cottages, sheds, garages and other enclosed spaces that may have had rodent activity during winter months.

Health specialists explained that hantavirus is most commonly transmitted when people inhale airborne particles contaminated by rodent urine, saliva or droppings.

Alice Sinia warned that one of the biggest mistakes people make is vacuuming or sweeping dry rodent droppings.

According to experts, disturbing dry droppings can release contaminated particles into the air, significantly increasing the risk of inhalation.

Instead, experts recommend:

• Moistening droppings with disinfectant before cleaning
• Allowing disinfectant to sit for several minutes
• Wearing gloves and masks
• Airing out enclosed spaces before entering
• Avoiding sweeping or vacuuming dry waste

Safronetz advised people reopening unused buildings after winter to properly ventilate the space before beginning cleanup.

Experts also stressed the importance of rodent prevention to reduce long-term risk.

Recommended prevention measures include:

• Sealing holes around doors, vents and foundations
• Removing fallen fruit and exposed bird seed
• Reducing clutter near homes
• Preventing rodent nesting areas

Sinia noted that mice can squeeze through openings as small as a dime, making home sealing especially important.

Despite the recent international outbreak, officials emphasized that the overall risk to the general public remains extremely low.

Health authorities also reassured people that monitoring systems and public health infrastructure remain active to detect and manage rare infections if they occur.

Bottom line

Health experts are advising caution while cleaning rodent droppings and enclosed spaces, especially during spring reopening season. Although hantavirus infections remain rare, improper cleanup methods can increase exposure risk to potentially serious respiratory illness.

What to watch next

• Monitoring of the international hantavirus outbreak
• Public health advisories related to rodent exposure
• Seasonal rise in rodent activity during warmer months
• Awareness campaigns around safe cleanup practices
• Research into rare human-to-human hantavirus transmission