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Are older people really more susceptible to SARS-CoV-2?

According to the Centers for Disease Control and Prevention (CDC), a majority of COVID-19 deaths in the United States have occurred among adults aged 65 and older. This stark statistic raises a crucial question: Are older people really more susceptible to SARS-CoV-2 infection, or are they more vulnerable to severe illness once infected? This article explores the biological and health-related factors that place the senior population at increased risk.