Table 2.
Demographic characteristics of healthy subjects (controls).
| Control# | Sex | Age (years) | 
|---|---|---|
| C1* | F | 38 | 
| C2* | M | 47 | 
| C3* | M | 35 | 
| C4* | M | 34 | 
| C5^ | M | 55 | 
| C6^ | M | 40 | 
| C7^ | F | 51 | 
| C8^ | F | 44 | 
| C9^ | M | 23 | 
| C10^ | M | 52 | 
| Age (years, mean ± SD) | 41.9 ± 9.8 | |
F, female; M, male; SD, standard deviation. All controls had no previous history of brucellosis and yielded a negative Wright serum agglutination test (<1/80). *Isolation of PBMCs that were used for macrophage differentiation and in vitro infection with Brucella spp, ^isolation of PMNs that were used for in vitro infection with Brucella spp.