AbstractBackground: COVID-19 continues to present challenges in the care of older adults with frailty and/or comorbidities and very old patients. who can be hospitalized with severe COVID-19 despite full vaccination. Frailty is a heterogeneous syndrome characterized by an increased aging-related vulnerability due to a reduced physiological reserve and function of systemic organs. and ... https://www.sunsetnoveltiers.shop/product-category/bullet/