Mycoplasma pneumoniae IgG Antibody Test
Confirm past exposure and immune memory to Mycoplasma pneumoniae.
This test detects IgG antibodies against Mycoplasma pneumoniae, the bacterium responsible for atypical 'walking' pneumonia and a range of upper and lower respiratory tract infections. It is designed for patients and clinicians who need to establish whether there has been a previous infection with this organism, rather than to diagnose an active, acute infection. Because IgG antibodies typically appear later than IgM and remain detectable for months or years after exposure, this test is particularly useful when assessing immune status, investigating persistent or recurrent respiratory symptoms, or clarifying the cause of a recent illness that has already resolved.
Who it is for
- Adults and children with a history of respiratory symptoms where Mycoplasma pneumoniae is a suspected but unconfirmed cause.
- Patients with persistent or recurrent cough, wheeze, or chest discomfort where prior infection is part of the differential diagnosis.
- Individuals who have been in close contact with a confirmed case and wish to know whether they have previously been exposed.
- Clinicians seeking to distinguish past exposure from other causes of atypical respiratory illness.
What it screens for
- Mycoplasma pneumoniae IgG antibodies: The presence of IgG antibodies indicates that the immune system has encountered Mycoplasma pneumoniae at some point. A positive result is consistent with past infection or exposure. A negative result suggests no prior exposure, although it may also occur very early after infection before antibodies have developed.
Why it matters
Mycoplasma pneumoniae is a common cause of respiratory infection that can be difficult to distinguish from viral or other bacterial causes based on symptoms alone. Knowing whether you have been previously exposed can help your doctor interpret ongoing or recurring respiratory symptoms, avoid unnecessary repeat testing, and make more informed decisions about your care. It also provides useful context when considering the likelihood of reinfection or when evaluating a community outbreak. This test offers a clear, evidence-based way to look back at your immune history and support a more targeted approach to respiratory health.
Mycoplasma pneumoniae Serology
- Mycoplasma pneumoniae IgG antibody
No special preparation required.
For blood tests, we recommend drinking plenty of water beforehand to ensure smooth sample collection. If you are taking any regular medication, continue to do so unless advised otherwise by your doctor.
Important Clinical Information:
This test is a screening tool to monitor and support your overall health. It does not replace your GP or consultant.
Always discuss your test results, especially any abnormal results, with your GP, who can interpret them in the context of your medical history and overall health.