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Pregnancy as a risk factor for acute toxoplasmosis seroconversion
Mariza Martins Avelino1, Dioclécio Campos, Josetti do Carmo Barbosa de Parada
1Department of Pediatrics of the Health Science School, National University of Brasília, Brasília (DF), Brazil. bmb@terra.com.br
Summary
Pregnancy increases the risk of toxoplasmosis seroconversion, with pregnant women experiencing an 8.6% acute infection rate. Close contact with animals and oocyst transmission routes are significant risk factors, especially for adolescents.
Area of Science:
- Medical Parasitology
- Infectious Disease Epidemiology
- Maternal Health
Background:
- Toxoplasmosis, caused by *Toxoplasma gondii*, is a significant public health concern.
- Understanding risk factors for seroconversion is crucial, particularly in vulnerable populations.
Purpose of the Study:
- To investigate whether pregnancy is a risk factor for *Toxoplasma gondii* seroconversion.
- To identify specific transmission routes contributing to infection risk during gestation.
Main Methods:
- Prospective observational study involving women of child-bearing age.
- Serological testing using indirect immunofluorescent antibody and immunoenzyme assays.
- Statistical validation with chi-squared and relative risk (RR) tests at 95% confidence intervals.
Main Results:
- A significant association was found between pregnancy and toxoplasmosis seroconversion (P=0.001).
- The acute infection rate among pregnant women was 8.6% (45/522).
- Close contact with host animals and oocyst transmission pathways were identified as statistical risks, particularly exacerbated in adolescents.
Conclusions:
- Pregnancy potentiates susceptibility to *Toxoplasma gondii* infection.
- Primary and secondary prevention strategies are essential for pregnant women at risk.
- Targeted interventions should consider environmental and age-related factors.