Table 2. ZIKV positivity by PRNT according to DENV exposure in mothers of cases and controls.
Previous DENV exposure | ZIKV NAbs | Total | |
---|---|---|---|
Positive | Negative | ||
DENV immune | 146 (64.89%) | 79 (35.11%) | 225 |
Naïve | 15 (40.54%) | 22 (59.46%) | 37 |
Total | 161 | 101 | 262 |
Abbreviations: DENV, dengue virus; ZIKV, Zika virus; NAbs, neutralizing antibodies
χ2 Mantel-Haenszel = 7.7; Overall OR = 2.9; p value = 0.006