A5067084369- SARS-CoV-2 and COVID-19 Research
- Vaccine Coverage and Hesitancy
- COVID-19 Clinical Research Studies
- COVID-19 epidemiological studies
- COVID-19 Impact on Reproduction
- Chaos-based Image/Signal Encryption
- Influenza Virus Research Studies
- User Authentication and Security Systems
- Biometric Identification and Security
- Power Systems and Technologies
Korea Disease Control and Prevention Agency
2023-2024
To compare the effectiveness of bivalent and monovalent COVID-19 vaccines throughout 2022-2023 winter season based on real-world data.This retrospective observational matched cohort study used national vaccination program a surveillance dataset from Republic Korea, included adults aged >18 years who received or between October 11, 2022, December 17, 2022. Cox proportional hazard models were to estimate ratio for infection groups.We 29,245 individuals in vaccine groups, respectively. The...
This retrospective observational matched-cohort study of 2,151,216 individuals from the Korean coronavirus disease 2019 (COVID-19) vaccine effectiveness cohort aimed to evaluate comparative COVID-19 bivalent versus monovalent vaccines in providing additional protection against severe acute respiratory syndrome 2 (SARS-CoV-2) infection, critical and death Korea.Among individuals, those vaccinated with were matched a 1:1 ratio who (bivalent non-recipients) during observation period. We fitted...
This study aimed to investigate the deaths due coronavirus disease 2019 (COVID-19) reinfection and related risk factors.National cohort data were collected for a six-month period when omicron BA.1/BA.2 variant was dominant in South Korea.The long-term care facility residents (adjusted odds ratio, 3.11; 95% confidence interval [CI], 2.98-3.25) had significantly higher of than general population. The lower persons with 2 or more vaccine doses compared unvaccinated. death group primary...
The Korea Disease Control and Prevention Agency promotes vaccination by regularly providing information on its benefits for reducing the severity of coronavirus disease 2019 (COVID-19). This study aimed to analyze number averted severe COVID-19 cases COVID-19-related deaths age group quantify impact Republic Korea's nationwide campaign.We analyzed an integrated database from beginning campaign February 26, 2021 October 15, 2022. We estimated cumulative over time comparing observed among...
We assessed the risk of reinfection among all residents in South Korea who tested positive for coronavirus disease 2019 from January to August 2022. Children 5-11 years [adjusted hazard ratio (aHR) = 2.20], and 12-17 old (aHR 2.00), were at higher risk; whereas 3-dose vaccination 0.20) lowered reinfection.
As electronic commerce service became more popular, information equivalent to currency prevails in network. Accordingly, hacking into network often occurs and thus OTP (One-Time-Password) has emerged as an alternative secondary security system. However, weakness been found even existing One-Time Password that used be considered 'perfect'. Therefore, it becomes very urgent have additional countermeasure. recommendation is not solution anymore, specific plan necessary. The present study...
Abstract Background Various types of vaccines against SARS-CoV-2 have reduced the burden coronavirus diseases 2019 (COVID-19) across world. We conducted an observational study to evaluate effectiveness NVX-CoV2373 and BNT162b2 in providing protection Korean adults. Methods This was a retrospective matched cohort emulate target trial three doses (N-N-N) versus (B-B-B) presumed immune-naive used data from Korea COVID-19 Vaccine Effectiveness (K-COVE) cohort, combining all laboratory-confirmed...