Soohyun Park

Jan 24, 2024 | mdpi.com | Sun Young Jeong |Soohyun Park |Min Sun |Sun Young

1. IntroductionThe COVID-19 pandemic, which lasted for more than three years, was ended by the World Health Organization on 5 May 2023. Nevertheless, healthcare providers must be prepared to care for emerging infectious diseases like COVID-19. During the COVID-19 pandemic, it was found that older adults were vulnerable to emerging respiratory infectious diseases. The mortality rate in the ages of 80 years and above is very high (58.89%), with a fatality rate of 2.68% [1].