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Yoon Hyung Park 1 Article
COVID-19 outbreak, herd immunity formation, and future public health strategies
Youngtaek Kim, Yoon Hyung Park
Epidemiol Health. 2021;43:e2021071.   Published online September 16, 2021
DOI: https://doi.org/10.4178/epih.e2021071
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Abstract
In Korea, where the successful control of the coronavirus disease 2019 (COVID-19) epidemic have been implemented by the follow-up survey management (containment) of COVID-19-infected persons, the number of infected persons has increased rapidly, and a re-epidemic trend is emerging. The Korean government is strengthening epidemic prevention activities, such as increasing the social distance in the metropolitan area to four levels and increasing the vaccination rate. The public has been complaining of dissatisfaction with the atrophy of socioeconomic activities and of distrust of epidemic prevention policies. Australia started with an incidence similar to that of Korea, but its social activities are more flexible than those of Korea, where the incidence is maintained at approximately 0.1 per 100,000 people. In comparing the differences between both countries in terms of the Oxford COVID-19 Government Response Tracker Stringency Index, it was found that Australia effectively regulates the number of infected cases by high-intensity intermittent mitigation and the subsequent allowance of social activities. Korea has also recommended a high-intensity intermittent mitigation policy as in Australia until community herd immunity via vaccination is formed.
Summary
Korean summary
COVID-19 효과적으로 관리하는 방안으로 4-7일 정도의 강력한 통제(mitigation, Lock down)를 하여 감염량을 대폭 감소 시킨 후 2-3개월간 대폭 완화된 사회적 거리 두기를 시행하는 방안을 제안한다 완화된 사회적 거리 두기에는 마스크만 착용하고, 학생들의 등교, 음식점 등 모임, 예식 모임 등에 제한을 두지 않는 방안이다. 호주의 사례를 밴치마킹한 모형이다. 이와 함께 단기간에 많은 사람을 예방 접종하여 지역사회 면역력을 올려야 한다. 이를 위해 접종 시기를 늦추더라도 백신을 충분히 확보한 후 접종일 시작할 것을 권고한다.
Key Message
The public has been complaining of dissatisfaction with the atrophy of socio-economic activities and of distrust of epidemic prevention policies. South Korea would change the COVID-19 prevention and control policies from November, 2021. Authors recommended a high-intensity intermittent mitigation and the subsequent allowance of social activities policy as in Australia until community herd immunity via vaccination is formed.

Epidemiol Health : Epidemiology and Health