Precision mapping: An innovative tool and way forward to shrink the map, better target interventions, and accelerate toward the elimination of schistosomiasis - Fig 1

<p><b>Comparison of precision and conventional maps of schistosomiasis prevalence in the health districts of Edea (A) and Ndikinimeki (B), Cameroon.</b> The precision maps (A1 and B1) provide more accurate information on the distribution of schistosomiasis within districts and a clear precision on subdistricts or communities requiring preventive chemotherapy. Differences of subdistrict prevalence between 1985 and 2010 mappings further illustrate the limitations and uncertainties of the conventional mapping (A2 versus A3 and B2 versus B3). Produced with Esri ArcGIS Pro 2.0.</p

Agreement between different techniques for the diagnosis of <i>S. mansoni</i> infections.

*<p>k<0 indicating no agreement, k = 0–0.2 indicating poor agreement, k = 0.21–0.4 indicating fair agreement, k = 0.41–0.6 indicating moderate agreement, k = 0.61–0.8 indicating substantial agreement, and k = 0.81–1 indicating almost perfect agreement.</p

Prevalence of <i>S. mansoni</i> and <i>S. haematobium</i> infections according to each diagnostic test and stratified by epidemiological setting.

<p>Setting A = Yaoundé, Setting B = Makénéné, Setting C = Njombé.</p

Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of different tests for the diagnosis of <i>S.mansoni</i>.

<p>Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of different tests for the diagnosis of <i>S.mansoni</i>.</p

Correlation between the prevalence of CCA test and the intensities of <i>S. mansoni</i> infections.

<p>Correlation between the prevalence of CCA test and the intensities of <i>S. mansoni</i> infections.</p

Correlation between <i>S. mansoni</i> infection intensities and CCA results.

<p>The prevalences of CCA (single CCA, triple CCA and CCA-L) are affected by the abundance of <i>S. mansoni</i> infection (stratified by intensity classes). A = setting 1, B = setting 2, C = setting 3, D = All settings A-B-C.</p

Comparative maps of the overall soil-transmitted helminthiasis prevalence in the three surveyed regions of Cameroon.

<p>Prevalence distribution in 1985–1987 (A) and in 2010 (B).</p

Prevalence of schistosomiasis and STH by age in the three surveyed regions in Cameroon.

<p>A few outliers below 5 or above 17 years old are not plotted.</p

Prevalence of schistosomiasis by school in the three surveyed regions of Cameroon.

<p>(A) <i>S. haematobium</i>, (B) <i>S. mansoni</i>, and (C) <i>S. guineensis</i>.</p

Comparison of prevalence of schistosomiasis and STH between 1980s and 2010.

<p>Note:</p><p>*Figures in brackets represent the 95% confidence intervals.</p