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Volume 24, Number 8—August 2018

Capillaria Ova and Diagnosis of Trichuris trichiura Infection in Humans by Kato-Katz Smear, Liberia

Kerstin Fischer, Abakar Gankpala, Lincoln Gankpala, Fatorma K. Bolay, Kurt C. Curtis, Gary J. Weil, and Peter U. FischerComments to Author 
Author affiliations: Washington University School of Medicine, St. Louis, Missouri, USA (K. Fischer, K.C. Curtis, G.J. Weil, P.U. Fischer); National Public Health Institute of Liberia, Charlesville, Liberia (A. Gankpala, L. Gankpala, F.K. Bolay)

Main Article

Table 1

Comparison of sensitivity of Kato-Katz smear and quantitative PCR results for 778 stool samples tested for soil-transmitted helminths, Foya and Harper districts, Liberia

Site and species
No. positive*
Kato-Katz smear sensitivity, %
qPCR sensitivity, %
McNemar p value
Foya district, n = 353
Ascaris lumbricoides 34 91.2 17.6 <0.0001
Hookworm† 247 93.5 83.4 <0.0001
Trichuris trichiura 27 100 7.4 <0.0001
Schistosoma mansoni
Harper district, n = 225
A. lumbricoides 180 90.6 98.9 0.0013
Hookworm† 99 65.7 89.9 0.0005
T. trichiura 86 59.3 94.2 0.0001

*Samples that tested positive by either method.
†Hookworm was Necator americanus. No Ancylostoma duodenale was detected.

Main Article

Page created: July 18, 2018
Page updated: July 18, 2018
Page reviewed: July 18, 2018
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