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Research Article

Table 1.

Results of medical surveys in the Bonon focus from 2000 to 2012.

Strategy and year Total population surveyed NSERO Seroprevalence (%) NHAT Prevalence (%)
*AMS 2000 15,289 170 1.11 74 0.48
*AMS2002 8284 96 1.16 33 0.4
*AMS2003 1369 25 1.83 2 0.15
AMS2004 6289 40 0.64 14 0.22
AMS 2007 6738 29 0.43 3 0.04
AMS 2008 3276 17 0.52 1 0.03
AMS 2009 4537 28 0.62 2 0.04
AMS 2012 3919 10 (5TL+) 0.25 (0.12) 0 0††
TDD 2012 1058 10 (7TL+) 0.94 (0.66) 4 0.4††

χ2 = 9.87, p = 0.001.

††

Fisher’s exact test, p = 0.001.

*

Data already published in [11].

AMS: Active mass screening, TDD: Targeted door-to-door, NSERO: New HAT seropositive individuals, NHAT: New HAT cases, TL+: Positive to the immune trypanolysis test.

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