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. 2019 Mar 11;13(3):e0007246. doi: 10.1371/journal.pntd.0007246

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