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Home Knowledge Center Wellness Library Lymphocytic choriomeningitis

Lymphocytic choriomeningitis

Lymphocytic choriomeningitis is an infection of the brain and spinal cord. For some people, the lymphocytic choriomeningitis virus (LCMV) causes mild flu-like symptoms or no symptoms at all. But the virus is of special concern to people with weak immune systems and to people who are pregnant. LCMV can infect a baby before birth and cause disability.

LCMV can be carried by:

  • Common house mice. You can be infected by handling or breathing dust from an infected mouse's feces, urine, saliva, or nest.
  • Pet rodents or feeder mice. Rarely, a rodent pet, such as a mouse, hamster, or guinea pig, is infected by house mice and passes the virus on to humans.

To lower your risk of LCMV infection:

  • Control house mice in your home.
  • Wear gloves if you feed mice to reptiles.
  • Wash your hands with soap and water after you handle rodents or pet bedding.
  • Use a disinfectant to clean up areas affected by house mice. Avoid sweeping or vacuuming, which stirs up dust.

Do not use a cabin or any other enclosed shelter that has signs of mice until it has been aired out, cleaned, and disinfected.

Current as of: September 30, 2025

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
All Ignite Healthwise, LLC education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

To learn more about Ignite Healthwise, LLC, visit webmdignite.com.

© 2024-2025 Ignite Healthwise, LLC.

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