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Table 2 In vitro praziquantel-susceptibility of individual S.mansoni miracidia isolated from 5 children in the Lake Victoria region of Tanzania in July 2010, as measured by five minute exposure to 1 × 10−6 M PZQ and classified microscopically by shape as normal (indicating reduced susceptibility to PZQ) or tadpole shape (sensitive to PZQ)

From: Phenotypic and genotypic monitoring of Schistosoma mansoni in Tanzanian schoolchildren five years into a preventative chemotherapy national control programme

School Child ID PTa Individual infection intensity (epg) Total no. of miracidia tested (n) No. of less susceptible miracidia (shape normal) No. of susceptible miracidia (shape tadpole) Percentage of less susceptible miracidia (95% CI)
Bukindo 1026 + 400 64 6 58 9 (2.0–16.0)
Kisorya 0012 1216 36 1 35 3 (0–8.6)
0017 2520 41 2 39 5 (0–11.7)
1002 + 330 45 4 42 7 (0–14.5)
1010 + 768 48 2 46 4 (0–9.5)
Total   234 15 220 5.6 (3.0–9.0)
  1. PT indicates whether children had a previous history of PZQ treatment
  2. a+, yes; −, no