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Original Articles
Pandemic Influenza (H1N1 2009) among Pregnant Korean Women
Baek-Nam Kim1, Yee Gyung Kwak1, Chi-Sook Moon1, Yeon-Sook Kim2, Eu Suk Kim3, Kkot Sil Lee4, Chang-Seop Lee5, and Ji-An Hur6
Department of Internal Medicine, Inje University College of Medicine, Busan1; Division of Infectious Diseases, Chungnam National University Hospital, Daejon2; Division of Infectious Diseases, Dongguk University Ilsan Hospital3; Division of Infectious Diseases, Kwandong University Myongji Hospital, Goyang4; Department of Internal Medicine, Chonbuk National University Medical School and the Research Institute of Clinical Medicine, Jeonju5; Division of Infectious Diseases, Yeungnam University Hospital, Daegu6, Korea
Vol.43 Num.1 (p55~59)
Background: Pregnant women are at an increased risk for severe illness and complications associated with pandemic (H1N1) 2009. This study was conducted to identify the severity of pandemic (H1N1) 2009 in pregnant Korean women.

Materials and Methods: The demographic and clinical data from pregnant women with laboratory confi rmed pandemic (H1N1) 2009 during September to December 2009 were retrospectively collected from 8 hospitals in Korea.

Results: A total of 150 pregnant women with pandemic (H1N1) 2009 were identified. The median age was 30 years (range: 22-39 years), and the median gestational age (n=114) was 20 weeks (range: 1-39 weeks). All but one patient with secondary bacterial pneumonia had influenza without complication. Although 12 pregnant women needed hospitalization, there were no patients who needed
admission to the intensive care unit or who died. Only one hospitalized patient had elective cesarean section because of oligohydamnios. No maternal or fetal complications directly related to the pandemic (H1N1) 2009 were identified among the 67 pregnant women who were followed up for 1 to 185 days after their infl uenza illness, including 6 women who delivered during the study period.

Conclusions: In contrast with the reports from Western countries, pandemic (H1N1) 2009 among pregnant Korean women was mild.
Keywords : Influenza, Infl uenza A(H1N1), Pandemic, Pregnancy