Table 2.

Number of samples tested in each country in each group (not exposed, serologically positive, or vaccinated withB. abortus)

StatusaNo. of observations per country and combined
ArgentinaChileColombiaCosta RicaCombined
Negative2159725548722,613
Positive7096922661901,857
VaccinateNAb 9541,1101,0023,066
  • a All samples were defined relative to their RBT and CFT results.

  • b NA, data not available. There was an insufficient number of vaccinates to be a separate category, and so the data was combined with negatives.