In general, a decreasing trend was observed for the prevalence of T. gondii antibodies over the studied years in the four regions, with the exception of the south region that showed an increase of 8% (95% CI 2% to 19%) between 2001/2002 and 2013 ( tables 1 and 2 ).
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Toxoplasma gondii seroprevalence in the Portuguese population: comparison of three cross-sectional studies spanning three decades.
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