Table 5 The results of blood culture, STA and ELISA in different stages of Brucellosis (number and the percentage of positive cases by each assay)
Group | Acute (< 8 weeks) N = 117 | Subacute (8–24 weeks) N = 78 | Chronic (>24 weeks) N = 40 |
|---|---|---|---|
Culture: N(% positivity) | 43 (36.75%) | 8 (10.26%) | 0 (0.00%) |
STA: N(% positivity) | 88 (75.21%) | 45 (57.69%) | 17 (42.50%) |
IgM by ELISA: N(% positivity) | 93 (79.49%) | 43 (55.13%) | 7 (17.50%) |
IgG by ELISA: N(% positivity) | 110 (94.02%) | 78 (100%) | 38 (95.00%) |
IgM and/or IgG by ELISA: N(% positivity) | 115 (98.30%) | 78 (100%) | 39 (97.50%) |