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PLoS One. 2017 Mar 9;12(3):e0172012. doi: 10.1371/journal.pone.0172012. eCollection 2017.

Disease burden of 2013-2014 seasonal influenza in adults in Korea.

Author information

1
Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea.
2
WHO Collaborating Centre for Infectious Disease Epidemiology and Control, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China.
3
Division of Infectious Diseases, Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
4
Division of Infectious Diseases, Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, Republic of Korea.
5
Division of Infectious Diseases, Department of Internal Medicine, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea.
6
Division of Infectious Diseases, Department of Internal Medicine, Chungbuk University Hospital, Chungbuk National University College of Medicine, Cheongju, Republic of Korea.
7
Division of Infectious Diseases, Department of Internal Medicine, Wonju Christian Hospital, Wonju College of Medicine, Yonsei University, Wonju, Republic of Korea.
8
Department of Internal Medicine, Kyungpook National University College of Medicine, Daegu, Republic of Korea.
9
Division of Infectious Diseases, Chonnam National University Medical School, Gwangju, Republic of Korea.
10
Department of Internal Medicine, College of Medicine, Pusan National University, Busan, Republic of Korea.
11
Transgovernmental Enterprise for Pandemic Influenza in Korea, Seoul, Republic of Korea.

Abstract

BACKGROUND:

This study was performed to investigate the disease burden of seasonal influenza in adults ≥20 years of age in Korea, based on surveillance data from the Hospital-based Influenza Morbidity & Mortality Surveillance (HIMM) network.

MATERIALS AND METHODS:

The HIMM network is composed of two surveillance systems: emergency room-based and inpatients-based surveillance. A total of ten university hospitals all over the country are included in the surveillance network. The adult catchment population of the HIMM network was calculated by using the data of each hospital and the database of the Health Insurance Review and Assessment Service (HIRA) of Korea. The incidence rates of laboratory-confirmed medically-attended influenza, laboratory-confirmed influenza-related admission and laboratory-confirmed influenza-related death were calculated based on the catchment population. The socioeconomic burden of influenza was estimated using the human capital approach.

RESULTS:

During the 2013-2014 influenza season, the calculated adult catchment population of the HIMM network was 1,380,000. The incidence of medically-attended laboratory-confirmed influenza infection was 242.8 per 100,000 adults. The incidence of laboratory-confirmed influenza-related admission was 57.9 per 100,000 adults. The incidence of laboratory-confirmed influenza-related death was 3.1 per 100,000 adults. The total socioeconomic cost of 2013-2014 seasonal influenza in Korean adult population was estimated as 125 million USD (1 USD = 1,100 KRW).

CONCLUSION:

The disease burden of 2013-2014 seasonal influenza in Korean adult population is very high and indicates that more active prevention and control policies will be needed to decrease the burden. Additional researches will be needed to assess the burden of seasonal influenza in the Korean child population.

PMID:
28278158
PMCID:
PMC5344334
DOI:
10.1371/journal.pone.0172012
[Indexed for MEDLINE]
Free PMC Article

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