Article

Toxoplasmosis among the pregnant women attending a Saudi maternity hospital: seroprevalence and possible risk factors

Department of Medical Parasitology, King Faisal University, Al Ahsa, Saudi Arabia.
Pathogens and Global Health (Impact Factor: 1.66). 09/2010; 104(6):493-504. DOI: 10.1179/136485910X12786389891443
Source: PubMed

ABSTRACT In a cross-sectional study to determine the seroprevalence of, and possible risk factors for, Toxoplasma gondii infection in the pregnant women of Saudi Arabia, all of the pregnant Saudi women attending the Al Ahsa Maternity Hospital over a 1-year period were invited to participate. In an interview with each subject, the relevant socio-demographic data and information on housing conditions, previous obstetric history and possible risk factors for Toxoplasma infection (e.g.frequency of consumption of undercooked meat, unwashed raw vegetables and/or unwashed raw fruit, contact with soil, and main sources of drinking water) were collected. Each subject was then checked for anti-Toxoplasma gondii IgG and IgM in commercial ELISA. Of the 554 expectant women investigated, 51.4% were found seropositive for anti-Toxoplasma IgG (indicating chronic infection) and 8.8% for anti-Toxoplasma IgM (indicating acute infection), with 6.1% of the women seropositive for Toxoplasma -specific IgM but seronegative for Toxoplasma-specific IgG. Acute infection was most common among the women who were relatively young, lived in rural areas and had relatively low incomes. The results of a multivariate logistic regression indicated that the significant positive predictors for chronic Toxoplasma infection were increasing age, rural residence, low family income, frequent consumption of undercooked meat, and previous obstetric problems (and/or multiparity). Although of questionable accuracy, the results of the present study revealed a relatively high seroprevalence of (possibly primary) acute Toxoplasma infection in the pregnant women, with the potential for transmission of the parasite to the foetuses.

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    • "However, the variation of sero-prevalence within a given country is not a new phenomenon; in USA the seroprevalence was found to vary from 17.5% in the west to 20.5% and 29.2% in the south-midwest and north-east, respectively [9]. Also the sero-prevalence in this study was low compared to studies in Brazil [10], Saudi Arabia [11], Morocco [12] and Sudan [13]. This may be accounted for by differences in climatic conditions, as reported before, where higher sero-prevalence is associated with hotter and wetter areas, which is favourable for sporulation of oocysts compared to less humid areas [14,15]. "
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    Parasites & Vectors 08/2013; 6(1):222. DOI:10.1186/1756-3305-6-222 · 3.25 Impact Factor
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    • "Similarly, the IgG seroprevalence of T. gondii obtained in this study was higher than those reported from Palestine [11], Saudi Arabia [12], Brazil [13], Sudan [14], Morocco [15] and China [3]. In contrast, lower seroprevalence of T. gondii was reported in many European countries and the United States of America [2]. "
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    The American journal of tropical medicine and hygiene 08/2011; 85(2):243-7. DOI:10.4269/ajtmh.2011.10-0633 · 2.74 Impact Factor
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