Cytomegalovirus IgM

Elevated CMV IgM levels might mean that your body is currently dealing with a recent or ongoing cytomegalovirus (CMV) infection. This common virus often stays inactive in your body, but can become active, especially when your immune system isn't at its best. Your body creates CMV IgM as an early response to fight the active virus. Things like stress, not getting enough sleep, or taking certain medications (like corticosteroids or immunosuppressants) could potentially weaken your immune system, making it easier for the virus to become active. Additionally, having an underlying condition that affects your immune system could also play a role in the virus becoming active.

Symptoms of high levels of CMV IgM may not always be apparent, as many people with an active CMV infection may not experience any noticeable symptoms. However, some individuals might experience flu-like symptoms such as fatigue, fever, sore throat, or muscle aches. In more severe cases, symptoms could include pneumonia, hepatitis, or inflammation of the brain (encephalitis).

Low levels of CMV IgM might mean that your body isn't actively fighting a CMV infection right now. This could be because you've never come across the virus, or maybe your body already dealt with a past infection and the virus is now just chilling out, not causing any trouble. Sometimes, certain medications like drugs that suppress your immune system can mess with how much CMV IgM your body makes. Also, if you have a long-term illness or a problem with your immune system, it could affect your body's ability to produce this important antibody.

Symptoms of low levels of CMV IgM are typically non-existent, as this usually signifies the absence of an active CMV infection.