Summary of brucellosis RBT studies in cattle in Nigeria.

1Number of studies using RBT on which individual prevalence values in table have been based (see text).2Sum of animal sample size for each study for which individual prevalence data is available.3Number of studies, out of total number of studies, on which individual prevalence is based, which report number of herds sampled.4Minimum estimate or true number of herds sampled for each production system category. Not all studies reported number of herds sampled, hence true value must be superior (>) to that in table.5Number of studies using RBT on which herd prevalence values in table have been based (see text).6Sum of number of herds sampled for each study for which herd prevalence data is available.7Studies sampling extensive and intensive flocks in parallel.8Not applicable.