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Chronic active toxoplasmosis in an immunocompetent patient
S O'Connell1, E C Guy, S J Dawson
1Department of Microbiology, Southampton General Hospital, U.K.
The Journal of Infection
|November 1, 1993
Summary
This case study details a woman with persistent toxoplasmosis symptoms for 8 years. Despite high IgM antibodies, she had two healthy pregnancies, with neither child infected.
Area of Science:
- Immunology
- Infectious Diseases
- Parasitology
Background:
- Toxoplasmosis, caused by *Toxoplasma gondii*, is a common parasitic infection.
- While often asymptomatic in immunocompetent individuals, chronic or persistent infections can occur.
- The role of persistent IgM antibodies in immunocompetent hosts requires further investigation.
Observation:
- An immunocompetent woman presented with symptoms and signs persisting for 8 years post-diagnosis of toxoplasmosis.
- Serological tests confirmed persistent elevated anti-toxoplasma IgM antibodies throughout the 8-year period.
- The patient underwent two successful pregnancies during this time.
Findings:
- Despite persistently increased anti-toxoplasma IgM antibodies, the woman experienced uncomplicated pregnancies.
- Post-natal follow-up revealed that neither of her two children acquired toxoplasmosis.
- This suggests that persistently elevated IgM may not always indicate active, transmissible infection in immunocompetent individuals.
Implications:
- This case challenges the traditional interpretation of persistently elevated IgM antibodies in toxoplasmosis.
- It highlights the potential for successful pregnancy outcomes even with prolonged serological markers of infection.
- Further research is needed to understand the long-term implications of persistent toxoplasmosis markers in immunocompetent individuals and their impact on vertical transmission.