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| Middle East respiratory syndrome outbreak in South Korea | |
|---|---|
| Name | Middle East respiratory syndrome outbreak in South Korea |
| Disease | Middle East respiratory syndrome coronavirus |
| Location | South Korea |
| Date | 2015 |
| Confirmed cases | 186 |
| Deaths | 38 |
Middle East respiratory syndrome outbreak in South Korea was a 2015 outbreak of Middle East respiratory syndrome coronavirus that originated from a returning traveler and resulted in 186 confirmed cases and 38 deaths. The event prompted national responses involving the Ministry of Health and Welfare (South Korea), the Korea Centers for Disease Control and Prevention, and international agencies such as the World Health Organization, while influencing public discourse in Seoul, Busan, and other regions.
The outbreak occurred in the context of global concern over Middle East respiratory syndrome coronavirus following cases in Saudi Arabia, United Arab Emirates, and South Korea's travel links to Middle East. Preceding events included surveillance guidance from the World Health Organization, research from institutions like the Centers for Disease Control and Prevention and National Institutes of Health, and clinical literature from journals associated with The Lancet and New England Journal of Medicine. South Korea's healthcare infrastructure, including hospitals such as Samsung Medical Center, Seoul National University Hospital, and Asan Medical Center, had to mobilize infection control protocols informed by guidelines from the World Health Organization and regional partners like the Chinese Center for Disease Control and Prevention.
The index case was a traveler who had visited Middle Eastern countries and returned to Incheon International Airport before developing symptoms; the patient sought care at multiple facilities including hospitals in Daejeon and Gyeonggi Province. Initial spread was amplified by hospital visits and contacts at facilities such as Pyeongtaek St. Mary's Hospital and Samsung Medical Center, with transmission chains involving family members, healthcare workers, and patients in crowded wards. Media organizations including Yonhap News Agency, BBC News, and The New York Times reported epidemiological links traced by the Korea Centers for Disease Control and Prevention and provincial health departments in Gyeonggi Province and Seoul Special City.
Transmission occurred primarily via close contact in healthcare settings, with secondary cases among visitors, caregivers, and hospital staff, consistent with nosocomial transmission patterns documented in Saudi Arabia and Jordan. Epidemiological investigations employed case definitions from the World Health Organization and molecular sequencing comparisons with strains characterized by researchers at Seoul National University and international laboratories including the U.S. Centers for Disease Control and Prevention. Superspreading events at facilities such as Pyeongtaek St. Mary's Hospital and crowded emergency departments drove a basic reproduction number estimate used by modeling groups at Korea University and Yonsei University. Age-stratified case-fatality patterns mirrored comorbidity burdens observed in cohorts studied by the International Severe Acute Respiratory and Emerging Infection Consortium.
Containment measures included contact tracing by the Korea Centers for Disease Control and Prevention, quarantines enforced by local public health authorities in Gyeonggi Province and Seoul, closure of affected hospital wards including at Samsung Medical Center, and advisories from the Ministry of Health and Welfare (South Korea). Internationally, the World Health Organization issued situation reports and travel guidance, while neighboring health agencies such as the China National Health Commission and Japanese Ministry of Health, Labour and Welfare increased surveillance at border checkpoints including Incheon International Airport. Legal and administrative actions referenced public health statutes used by local governments like the Seoul Metropolitan Government, and emergency communication involved broadcasters such as KBS, MBC, and SBS.
Clinically, the outbreak presented with severe pneumonia, acute respiratory distress, and multi-organ dysfunction in a subset of patients treated at tertiary centers like Asan Medical Center and Seoul National University Hospital. Healthcare worker infections affected staffing at institutions including Samsung Medical Center and regional hospitals in Gyeonggi Province, prompting temporary suspension of elective services and transfers coordinated with municipal health bureaus. The crisis highlighted challenges in infection prevention and control protocols familiar from previous outbreaks at institutions such as Bundang Hospital and spurred revisions to triage processes in emergency departments across Seoul and provincial cities like Daegu.
Post-outbreak investigations involved the Korea Centers for Disease Control and Prevention, parliamentary inquiries by the National Assembly (South Korea), and reviews by external bodies including the World Health Organization. Criticism targeted delayed disclosure of hospital movements by patients, hospital visitation policies at facilities like Pyeongtaek St. Mary's Hospital, and coordination between the Ministry of Health and Welfare (South Korea) and municipal governments. Policy changes included amendments to hospital infection control accreditation overseen by the Ministry of Health and Welfare (South Korea), enhanced disease surveillance integrated with systems used by the World Health Organization, and legal clarifications debated in the National Assembly (South Korea).
The outbreak's legacy influenced pandemic preparedness approaches at institutions such as Korea University, Yonsei University, and the Korea Centers for Disease Control and Prevention, shaping responses to later events including the COVID-19 pandemic and informing international discussions at forums involving the World Health Organization and G20. It led to strengthened infection control training at hospitals including Seoul National University Hospital and sparked academic work published by researchers affiliated with Korea University Medical Center and international partners such as the Centers for Disease Control and Prevention. The episode remains a case study in nosocomial transmission, emergency communication by agencies like the Ministry of Health and Welfare (South Korea), and legal reforms handled by the National Assembly (South Korea).
Category:Infectious disease outbreaks in South Korea