Inclusion Criteria:  Pregnant patients Major Affiliated with social security Symptomatic or pauci-symptomatic dengue Biological confirmation of dengue fever by dengue positive PCR or IgM positive during the current dengue episode  Exclusion Criteria:  Multiple pregnancy Patient's refusal Protected persons: person deprived of liberty by judicial or administrative decision, minor, and person subject to a legal protection measure: guardianship or curators)