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Congenital toxoplasmosis in Uberlândia, MG, Brazil

Gesmar Rodrigues Silva Segundo1, Deise Aparecida Oliveira Silva, José Roberto Mineo

  • 1Laboratório de Imunologia, Instituto de Ciências Biomédicas, Brazil.

Journal of Tropical Pediatrics
|February 27, 2004
PubMed

Insights

Congenital toxoplasmosis, a serious infant condition, can lead to lifelong visual and neurological issues. This study found a 0.5% rate of congenital toxoplasmosis in Brazil, highlighting the need for prenatal screening programs.

Area of Science:

  • Medical Parasitology
  • Infectious Diseases
  • Public Health

Background:

  • Congenital toxoplasmosis can cause severe visual and neurological impairments in infants if left untreated.
  • Early diagnosis and intervention are crucial for preventing long-term health consequences.

Purpose of the Study:

  • To determine the prevalence of congenital toxoplasmosis in newborns from two hospitals in Uberlândia, Brazil.
  • To assess the occurrence of Toxoplasma gondii infection in pregnant women and newborns.

Main Methods:

  • Collected 805 cord blood samples from public and private hospitals.
  • Utilized ELISA to detect IgG antibodies against Toxoplasma gondii.
  • Confirmed congenital cases by testing for specific IgM and IgA antibodies using capture ELISA.

Main Results:

  • Observed a 51.6% seroprevalence of IgG antibodies against T. gondii.
  • Identified a 0.5% frequency of congenital toxoplasmosis, indicated by specific IgM and/or IgA antibodies.
  • Chorioretinitis was the primary clinical manifestation observed in affected infants.

Conclusions:

  • The high seroprevalence of T. gondii and the rate of congenital toxoplasmosis underscore the importance of implementing screening programs during pregnancy.
  • Routine screening can facilitate early detection and management, mitigating potential developmental impairments.

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