Background: Dengue, a mosquito-borne flavivirus infection, is endemic in Southeast Asia.
Currently, the incidence has been increasing among adults.
Case presentation: A 26-year-old Thai woman, G1P0 31 weeks pregnancy, presented with
epigastric pain for 1 day. She also had a high-grade fever for 4 days. The physical examination,
complete blood counts as well as serology confirmed dengue fever. The patient was under
conservative treatment despite severe thrombocytopenia. She was well at the 3rd day of discharge
and 1-week follow-up. The pregnancy continued until term without any complication and she
delivered vaginally a healthy female baby.
Conclusions: More cases of dengue infection in pregnancy can be found due to the increasing
incidence during adulthood. It should be suspected when a pregnant woman presents with
symptoms and signs like in a non-pregnant. Conservative treatment should be conducted unless
there are any complications.