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Toxocara Seroprevalence in the US & Risk Factors

Clin Infect Dis; ePub 2017 Sep 4; Liu, et al

While Toxocara seroprevalence estimates in the US were lower in 2011-2014 than from a previous study from 1988-1994, seropositivity risk factors remained unchanged, a recent study found. The study used a multiplex bead based assay with purified Toxocara canis antigen to estimate Toxocara antibody seroprevalence in a serum of 13,509 persons aged ≥6 years from the National Health and Nutrition Examination Survey (NHANES), 2011-2014, and identified seropositivity risk factors. Researchers found:

  • The age standardized estimate of Toxocara seroprevalence was 5.0%; this was lower than previously reported.
  • Risk factors for seropositivity from multiple logistic regression were older age, non-Hispanic black race/Hispanic origin vs non-Hispanic white, male sex, living below the poverty level, households with ≥0.5 persons per room, less than college education, and birth outside the US.

Citation:

Liu EW, Chastain HM, Shin SH, et al. Seroprevalence of antibodies to Toxocara species in the United States and associated risk factors, 2011- 2014. [Published online ahead of print September 4, 2017]. Clin Infect Dis. doi:10.1093/cid/cix784.

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