The people with preexisting conditions like diabetes, heart disease, and lung disease, may be severely affected by the new version of coronavirus. The older adults are also considered at high risk when it comes to the susceptibility of contracting COVID-19.
One possible reason may be the immune system that grows weaker as one gets older, according to the National Foundation for Infectious Diseases. Resultantly, the immune system may have a harder time fighting off the invaded SARS-CoV-2 compared with a younger person with a more robust immune system.
Many people develop other health conditions as they age which might be the second reason for the increased risk factor for older people. For example, diabetes, obesity, heart disease, and chronic lung disease, which tend to be more common in older people, can make people more vulnerable to serious complications from COVID-19.
Dr. J. Butler, Deputy Director for Infectious Diseases at CDC, advises on how to avoid the increased risk factor of contracting the COVID-19 especially in older people and people with prior medical conditions.