Incidence and prevalence of different bovine trypanosomes during 18 months follow-up period in RAP and non RAP regimens.

Incidence rate ratios (a) were estimated by Poisson random effect models using individual animal follow up period as offset variable. Odds ratios (b, c) were estimated by logistic random effect models. All models include village as random effect to adjust for correlation within villages. Follow up years; sum of all animals (last month sampled - first month sampled), incidence per 100 years = (Number positive/Follow-up years)*100. CI; confidence interval, OR; Odds ratio.Incidence and prevalence of different bovine trypanosomes during 18 months follow-up period in RAP and non RAP regimens.