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Aspects related to positivity for schistosomiasis: a cross-sectional study in a low prevalence area in the state of Alagoas, Brazil, 2020

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DOI:

https://doi.org/10.1590/S1679-49742021000200005

Keywords:

Neglected Diseases, Cross-Sectional Studies, Sensitivity and Specificity, Public Health, Schistosomiasis Mansoni, Parasitic Diseases

Abstract

Objective: To analyze aspects related to positivity for schistosomiasis in an area of ​​low prevalence in Brazil. Methods: Cross-sectional study, carried out in the first half of 2020, where proportion of positivity was analyzed according to the number of Kato-Katz slides, the diagnostic performance of the test and the creation of a positivity estimation factor from the data of the Information from the Schistosomiasis Surveillance and Control Program (SISPCE). Results: 2,088 slides from 348 individuals were analyzed, with proportion of positivity of 11.8%, 26.7% and 31.0% for 1, 4 and 6 slides analyzed, respectively. There was excellent agreement (Kappa = 0.91) between the reading of 4 and 6 slides. An underreporting of 2.1 times was estimated in the SISPCE data. Conclusion: Increasing the number of blades increased the positivity of Kato-Katz, which can contribute to maximize the control of the disease as a public health problem.

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Posted

01/07/2021

How to Cite

Santos, I. G. de A. ., Bezerra, L. P. ., Cirilo, T. M. ., Silva, L. O. ., Machado, J. P. V. ., Lima, P. D. ., Souza, M. R. B. ., Gomes, S. da C. ., Silva, G. I. L. da ., Damasceno, I. A. ., Alencar, V. J. B. ., Carvalho, M. M. V. de ., Ramos, R. E. S. ., Gomes, D. S. ., Paz, W. S. da ., Santos Júnior, E. G., Alves, L. C. ., & Brayner, F. A. . (2021). Aspects related to positivity for schistosomiasis: a cross-sectional study in a low prevalence area in the state of Alagoas, Brazil, 2020. In SciELO Preprints. https://doi.org/10.1590/S1679-49742021000200005

Section

Health Sciences