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Table 1 Proportions of egg viability in colon tissues of mice infected with S. japonicum and with or without PZQ treatment

From: Clinical diagnostic value of viable Schistosoma japonicum eggs detected in host tissues

  Days post-infection Days post-treatment with PZQ
45d 90d 180d 30d 90d 180d
Mouse numbers 6 6 6 6 6 6
Worm burden Mean ± SD 17.2 ± 3.3 7.6 ± 1.7 4.5 ± 0.7 0 0 0
male-female worms pairs 8.4 3.8 1.6 0 0 0
Eggs in colon biopsies
(total of 30 biopsies)
4666 4840 4532 4497 2320 1587
The proportion of different types of eggs Immature eggs
(total)*
39.4%
(1840)
19.8%
(960)
14.7%
(666)
1.1%
(49)
0 0
Mature eggs
(total)*
51.7%
(2412)
34.0%
(1644)
20.8%
(943)
1.7%
(75)
0 0
Partially degraded eggs (total) 8.9%
(414)
11.7%
(568)
18.6%
(843)
54.2%
(2436)
12.8%
(296)
11.1%
(176)
Completely degraded eggs (total) 0 29.6%
(1433)
35.6%
(1613)
18.8%
(845)
72.5% (2024) 88.9%
(1411)
Unknown viability type
(total)
0 4.9%
(235)
10.1%
(467)
27.0%
(1216)
14.7%
(342)
0
  1. * Immature eggs and mature eggs were judged to be live or viable by morphology