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Parasitic Disease Surveillance, Mississippi, USA

Richard S Bradbury et al. Emerg Infect Dis. 2021 Aug.

Abstract

Surveillance for soil-transmitted helminths, strongyloidiasis, cryptosporidiosis, and giardiasis was conducted in Mississippi, USA. PCR performed on 224 fecal samples for all soil-transmitted helminths and on 370 samples for only Necator americanus and Strongyloides stercoralis identified 1 S. stercoralis infection. Seroprevalences were 8.8% for Toxocara, 27.4% for Cryptosporidium, 5.7% for Giardia, and 0.2% for Strongyloides parasites.

Keywords: Cryptosporidium; Mississippi; Soil-transmitted helminths; Strongyloides; Toxocara; United States; cryptosporidiosis; giardiasis; parasites; pediatric; strongyloidiasis; toxocariasis; zoonoses.

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Figures

Figure 1
Figure 1
Places of residence of participants with antibody levels suggesting prior exposure to Cryptosporidium spp. Cp17 and Cp23 (n = 538) (A), Giardia duodenalis VSP3 (n = 111) (B), and Cryptosporidium spp. Cp17 and Cp23 and Giardia duodenalis VSP3 (combined) (n = 38) (C), Mississippi, USA. All serologic assays were performed using MAGPIX multiplex recombinant antigen beads (ThermoFisher, https://www.thermofisher.com) on convenience serum samples collected at the University of Mississippi Medical Center (Jackson, MS, USA) during October 28, 2017–March 29, 2018. Only those samples confirmed by a subsequent S. stercoralis crude L3 larval antigen (CrAg) ELISA are included.
Figure 2
Figure 2
Places of residence of participants with antibody levels suggesting prior exposure to Toxocara spp. Tc-CTL-1 (n = 172) (A) and Strongyloides stercoralis Ss-NIE-1 (n = 4) (B) , Mississippi, USA. All serologic assays were performed using MAGPIX multiplex recombinant antigen beads (ThermoFisher, https://www.thermofisher.com) on convenience serum samples collected at the University of Mississippi Medical Center (Jackson, MS, USA) during October 28, 2017–March 29, 2018. Only those samples confirmed by a subsequent S. stercoralis crude L3 larval antigen (CrAg) ELISA are included.
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