Diseases Spread by Norway Rats

When Norway rats invade attics or kitchens, property damage and loss of food aren’t the worst concerns. Residents should be much more worried about Norway rat diseases, which can damage the health and threaten the wellbeing of humans. Some of the more severe illnesses include:

  • Hantavirus Pulmonary Syndrome – Any immediate contact with rodent saliva or droppings can spread HPS. Although it’s somewhat rare, the potential severity of the disease makes it noteworthy. Symptoms include chills, nausea, and abdominal discomfort.
  • Tularemia – Humans contract this fever-inducing Norway rat disease by either eating contaminated food or through the skin. The illness results in ulcers and the swelling of glands.
  • Salmonellosis – This disease is spread via the accidental ingestion of food or drink polluted with rodent feces. Symptoms can last up to a week and include bloody stool, abdominal cramps, and vomiting.

Airborne Transmission

Many Norway rat diseases are spread through the air. Dried fecal matter is easily kicked up in grass or gardens and disturbed while cleaning sheds or attics. Proper ventilation is necessary when cleaning up droppings, and homeowners must wear dust masks, gloves, and long sleeves to stay safe. To best avoid catching these diseases, contact the professionals at Critter Control to eliminate Norway rats safely.

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Steven Scalzo profile picture
Steven Scalzo
2 October 2026
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Very Efficient and Effective Service Outstanding service performed by Jamie at Critter Control. She was very personable, professional, and knowledgeable on skunk removal. She was able to safely remove the skunk from my property within 30 minutes as well as ensure that other areas of my home were safe from invasion by these critters. I highly recommend Jamie Murphy with Critter Control. Extremely satisfied with the service she provided.
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toney cole
1 October 2026
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It was impressive how the entire team worked with me until my squirrel situation was resolved. Great service, quick response to inquiries along with caring attitudes, knowledgeable and professional. Because of Critter Control..All is well...thank you!
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Polly Riggenbach
1 October 2026
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Critter Control did a great job evicting bats from our eaves and inside our walls. They were available to get the job started right away and get the two colonies of bats out of our house quickly. They were also kind enough to replace some light bulbs that we didn't have ladders high enough to reach their process.
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Sam Barg
1 October 2026
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The wildlife technician, Hudson, has been very thorough with addressing the removal and prevention of bats. He’s friendly and thoughtful and I would highly recommend him.
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Kerry Milligan
1 October 2026
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Joel does a great job and is super reliable. Always on time for our appointments or let’s me know well in advance if he’s running late. Terrific service.
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Allen Baltimore
1 October 2026
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Jay was awesome and knowledgeable explaining the process.
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Mark Riggenbach
1 October 2026
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Very professional and friendly. and made sure they did the job right.
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Deb Whiteman
1 October 2026
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Jon from Critter Control did a great job explaining in a concise manner what the job entailed and answered all questions in a thorough manner. I would recommend without hesitation.
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Alexa Bearden
1 October 2026
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Awesome experience!! I needed bats to be relocated out of my attic and I was given a clear understanding of what they were going to do and everything was cleaned up and it looks great!
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Sheryl Hauger
1 October 2026
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Great service! And customer service. Thanks
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