Aspects related to positivity for schistosomiasis: a cross-sectional study in a low prevalence area in the state of Alagoas, Brazil, 2020
Keywords:Neglected Diseases, Cross-Sectional Studies, Sensitivity and Specificity, Public Health, Schistosomiasis Mansoni, Parasitic Diseases
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.
Copyright (c) 2021 Israel Gomes de Amorim Santos, Letícia Pereira Bezerra, Tatyane Martins Cirilo, Laryssa Oliveira Silva, João Paulo Vieira Machado, Pedro Dantas Lima, Martha Rejane Bispo Souza, Sheilla da Conceição Gomes, Glória Isabel Lisboa da Silva, Ivisson Abreu Damasceno, Vitória Jordana Bezerra Alencar, Mikaelly Maria Vieira de Carvalho, Rosália Elen Santos Ramos, Dharliton Soares Gomes, Wandklebson Silva da Paz, Edmilson Genuíno Santos Júnior, Luiz Carlos Alves, Fábio André Brayner
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