Korea University · Medicine
Professor Ji Yun Noh's research lab specializes in infectious disease epidemiology, with a focus on respiratory viruses including influenza and SARS-CoV-2. The lab investigates the impact of public health interventions—such as social distancing and infection control measures—on viral transmission dynamics and epidemic patterns. It also conducts serosurveillance to assess population-level immunity and disease burden, contributing critical insights for pandemic preparedness and hospital infection control strategies.
Figures are computed from collected data and may differ slightly.
In a recent study published in Nature, Wang et al.
Social distancing has been adopted as one of basic protective measures against coronavirus disease 2019 (COVID-19). During 2019-2020 season, influenza epidemic period was exceptionally short and epidemic peak was low in comparison with previous seasons in Korea. Influenza epidemic pattern was bimodal in 2016-2017 and 2018-2019 seasons, however, influenza viruses have rarely been circulating in spring, 2020 in Korea. Although multiple factors could affect the size of influenza epidemic, extensive
Since it first emerged in December 2019, coronavirus disease 2019 (COVID-19) has spread rapidly worldwide. During the pandemic of an emerging infectious disease, it is very important to prevent nosocomial outbreaks and operate hospitals safely to maintain their functions. In this article, we present the strategies for safe hospital operations based on the experiences of the Republic of Korea early in the COVID-19 pandemic. Each hospital should maintain multiple layers of defenses to prevent even
Serosurveillance studies reveal the actual disease burden and herd immunity level in the population. In Seoul, Korea, a cross-sectional investigation showed 0.07% anti-severe acute respiratory syndrome coronavirus-2 antibody seropositivity among 1,500 outpatients of the university hospitals. Low seroprevalence reflects well-implemented social distancing. Serosurveillance should be repeated as the pandemic progresses.
The MF59-adjuvanted influenza vaccine showed better immunogenicity than the non-adjuvanted influenza vaccine in CKD patients undergoing HD.
This study is valuable as the first extensive laboratory surveillance of the epidemiology of respiratory viruses in ILI patients through a teaching hospital-based influenza surveillance system in South Korea.
In conclusion, most (>85%) patients carry NAb until 6 months after diagnosis of SARS-CoV-2 infection, providing insights for establishing vaccination strategies against COVID-19.
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