‘Covid-19 patients who are 80 or older are hundreds of times more likely to die than those under 40. That’s partly because they are more likely to have underlying conditions — like diabetes and lung disease — that seem to make the body more vulnerable to Covid-19.
‘But some scientists suggest another likely, if underappreciated, driver of this increased risk: the ageing immune system. The changes that ripple through our network of immune cells as the decades pass are complex, resulting in an overreaction here, a delayed response there and, overall, a strangely altered landscape of immunity.’
Read here (Today Online, Sept 13, 2020)