Table 3.
Livestock population survey results
Kato-Katz positive (n/N) | MHT positive (n/N*) | Median posterior prevalence of schistosomiasis†(95% BCI) | Covariance of disease-positive animals (95% BCI) | Proportion of infected animals shedding S bovis (n‡) | Proportion of infected animals shedding S curassoni (n‡) | Proportion of infected animals shedding S bovis–S curassoni hybrids (n‡) | |
---|---|---|---|---|---|---|---|
Richard Toll and Lac de Guiers, 2017 | |||||||
Cattle | 62/203 | 57/70 | 0·94 (0·81–1·00) | 0·04 (0·00–0·07) | 1 (85) | 0 (85) | 0·01 (85) |
Goat | 12/189 | 5/64 | 0·26 (0·13–0·48) | 0·03 (0·00–0·10) | 0·6 (5) | 0·40 (5) | 0 (5) |
Sheep | 5/196 | 4/68 | 0·16 (0·07–0·34) | 0·03 (0·00–0·11) | 1 (7) | 0 (7) | 0 (7) |
Barkedji and Linguère, 2016 | |||||||
Cattle | 9/87 | 2/32 | 0·29 (0·12–0·59) | 0·03 (0·00–0·12) | 0 (2) | 1 (2) | 0 (2) |
Goat | 7/152 | 2/53 | 0·17 (0·06–0·37) | 0·04 (0·00–0·13) | 0 (1) | 1 (1) | 0 (1) |
Sheep | 12/146 | 3/44 | 0·34 (0·16–0·64) | 0·02 (0·00–0·08) | 0 (2) | 1 (2) | 0·50 (2) |
Barkedji and Linguère, 2017 | |||||||
Cattle | 4/192 | 2/70 | 0·09 (0·03–0·23) | 0·04 (0·00–0·15) | NA | NA | NA |
Goat | 42/205 | 29/72 | 0·86 (0·62–0·99) | 0·13 (0·08–0·16) | 0 (30) | 1 (30) | 0 (30) |
Sheep | 26/204 | 24/68 | 0·77 (0·52–0·98) | 0·08 (0·03–0·12) | 0 (33) | 0·97 (33) | 0·03 (33) |
Because of the poor performance of the Kato-Katz test alone in all livestock species, prevalence estimates are based on animals with MHT and Kato-Katz tests carried out in parallel. MHT=miracidia hatching test. BCI=Bayesian credible interval.
Random subset of animals with MHT and Kato-Katz tests performed in parallel.
Based on Kato-Katz and MHT results from random subset of animals with both tests carried out in parallel.
Number of positive animals with miracidia analysed.