Community study of toxoplasma antibodies in urban and rural schoolchildren aged 4 to 18 years
a Department of Paediatrics, Trinity
College Dublin and the National Children's Hospital, Harcourt Street,
Dublin, b Department of Microbiology,
Rotunda Hospital, Dublin, c Department of
Zoology, Trinity College Dublin, d Royal College of Surgeons in Ireland, Dublin,
Department of Microbiology, Rotunda Hospital and the Children's
Hospital, Temple Street, Dublin
Correspondence to: Dr M R H Taylor, Department of Paediatrics, National Children's Hospital, Harcourt Street, Dublin 2, Ireland.
Accepted 21 June 1997
To estimate the prevalence of toxoplasma antibodies in
schoolchildren and their association with clinical and environmental data, antibody titres were measured in 1276 children aged 4 to 18 years
attending primary and secondary schools. Environmental and clinical
data were obtained by questionnaire. Altogether 12.8% (163/1276) of
children had antibodies to Toxoplasma gondii with no
difference between the sexes. Seroprevalence was higher in country
children (16.6% (50/302)) than town children (10.2% (75/737)). The
proportion testing positive increased with age in both town and country
children. No association with cat ownership was found. Toxoplasma
seropositivity was associated with a positive toxocara titre, having
had a bitch whelp in the past two years, and having an unwormed dog at
home. Lack of energy or tiredness in the last 12 months were the only
clinical features associated with a positive titre.
© 1997 by Archives of Disease in Childhood
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