M.A. Almushait, M.A. Eskandar, N.M. Elsherbiny, S.M. Bin Dajem, T.A. Azraqi, L.M. Makhlouf,
Serological and Molecular Diagnosis of Acute Feto-Maternal Toxoplasmosis in the Southwestern Region of Saudi Arabia,
Research Journal of Medical Sciences,
Volume 7,Issue 5-6,
2013,
Pages 156-161,
ISSN 1815-9346,
rjmsci.2013.156.161,
(https://makhillpublications.co/view-article.php?doi=rjmsci.2013.156.161)
Abstract: Primary toxoplasma infection during pregnancy carries a risk
of fetal damage. The most frequent challenge encountered is how to determine
if a pregnant woman acquired the acute infection during gestation. This study
aimed to determine the incidence of acute maternal toxoplasmosis by a reliable
method and to estimate the rate of intrauterine transmission. A total of 487
Saudi pregnant women who had attended the three major hospitals in Southwestern
region, Saudi Arabia between January 2008 and August 2010 were included in the
study. Two blood samples were collected from each woman. Anti-Toxoplasma
gondii antibodies (IgM and IgG) were determined by Enzyme-Linked Immunosorbent
Assay (ELISA). Cord blood samples were collected from the umbilical cord after
delivery and anti-T. gondii IgM and IgA in these samples were also determined
by ELISA. Maternal and fetal seropositive samples were confirmed by Polymerase
Chain Reaction (PCR). The incidence rate of acute maternal toxoplasmosis during
pregnancy was 2%. Anti-T. gondii IgM was found in 2.4% (4/168) while
anti-T. gondii IgA was not detected in any. Infants born to mothers who
developed acute toxoplasmosis during pregnancy had significantly higher risk
(31 fold) of developing congenital toxoplasmosis. Diagnosis of acute maternal
toxoplasmosis during pregnancy should rely on the detection of seroconversion
or else PCR is mandatory for confirmation. The incidence of acute maternal toxoplasmosis
was considerable in this region of Saudi Arabia. Infants born to those mothers
had significantly higher risk of developing congenital toxoplasmosis.
Keywords: Acute toxoplasma;pregnancy;seroconversion;diagnosis;Saudi Arabia