The news in context
The European Centre for Disease Prevention and Control reported an Andes hantavirus outbreak linked to the MV Hondius cruise ship, with seven confirmed cases, two probable cases, and three deaths as of May 11, 2026. CDC has said the risk to the American public remains extremely low. For homeowners and property managers, the practical lesson is prevention: reduce contact with rodents and the spaces they contaminate. ECDC outbreak update · CDC statement
Why it matters
Rodents can turn ordinary spaces into risk zones.
Hantaviruses are mainly spread from rodents to people. CDC notes that people can be exposed when fresh rodent urine, droppings, saliva, or nesting materials are stirred up and contaminated particles get into the air.
They hide where people store things.
Attics, basements, crawl spaces, garages, sheds, barns, campers, and stock rooms give rodents dark, quiet places to nest.
They contaminate surfaces.
Droppings, urine, nesting materials, and gnaw marks should be treated as signs to act—not something to sweep away casually.
Prevention beats cleanup.
The best approach is layered: block entry, remove attractants, clean safely, monitor activity, and use a deterrent to make the space less comfortable for pests.
Where RODAR® II fits
A quiet, plug-in layer for indoor pest deterrence.
RODAR® II Ultrasonic Pest Repeller uses high-frequency ultrasound designed to help deter pests from staying in a protected area. It is a non-chemical tool that can run continuously in the background as part of a practical, layered pest-prevention plan.
- Helps repel rodents and many other pests, including rats, mice, squirrels, bats, fleas, and roaches
- One unit covers up to 3,000 square feet
- Ultrasonic output listed at 23 to 55 kHz
- Plugs into a standard outlet and uses less than 2 watts of electricity
- Small 6" x 4" design for easy placement in many indoor spaces
The prevention plan
A cleaner space starts with four simple layers.
RODAR® II is not a medical device, disinfectant, or replacement for safe cleanup. Think of it as one useful part of a broader plan that also includes exclusion, sanitation, and safe handling of rodent-contaminated areas.
Seal entry points
Check around garage doors, vents, utility penetrations, foundations, crawl spaces, rooflines, and gaps around doors. Blocking access reduces the chance that rodents move in.
Remove attractants
Store food in sealed containers, manage trash promptly, clean spills, keep pet food secured, and reduce clutter where rodents may nest.
Clean safely
Do not sweep or vacuum rodent droppings or nesting material dry. CDC recommends wetting contaminated areas with disinfectant or bleach solution before wiping them up carefully.
Deter and monitor
Place RODAR® II where ultrasonic waves can travel freely across the area, then keep monitoring for droppings, gnaw marks, nesting material, and new entry points.
Placement guide
Give ultrasound a clear path.
Ultrasonic sound behaves best when it can travel into open space. Placement matters, especially in rooms with heavy storage, furniture, boxes, shelving, or thick barriers.
Good placement
- Open wall outlet
- Clear line into the room
- Near problem areas
- Away from large obstructions
- Running continuously
Avoid
- Behind furniture
- Inside closed cabinets
- Behind stacked boxes
- Blocked by thick walls
- Turning it off between uses
Use cases
Built for the places pests try to settle.
RODAR® II is especially useful in indoor spaces where you want a plug-in, non-chemical deterrent working in the background.
The bottom line
Don’t invite pests in. Help keep them out.
The MV Hondius outbreak is unusual and serious, but the everyday lesson is straightforward: rodent exposure is worth preventing before it becomes a bigger problem. Combine sealing, sanitation, safe cleanup, monitoring, and ultrasonic pest deterrence to make your indoor spaces less inviting to pests.
Frequently asked questions
Quick answers before you plug in.
Can RODAR® II prevent hantavirus?
What does the cruise ship outbreak have to do with home rodent control?
Where should I place RODAR® II?
Do I still need to clean and seal entry points if I use RODAR® II?
Is the ultrasonic sound from RODAR® II safe for people and pets?
Sources
Helpful public-health and product references
Need help choosing a setup?
Prefer to talk? Call 1-800-456-0734 or email service@microncorp.com.
