Dear Editor, As the Covid pandemic wanes, with the uncertainty persistent, both odd memories and outright amnesia prevail. Amongst the anxieties that occupy the mind, probably the degree and duration of immunity acquired by one plus ‘n’ booster doses received may be the most elementary and the focussed one. As pointed out and stated, the precise answer is so far incomplete and imprecise. The ‘
‘ vulnerability ‘ to variants is an answer sought after, particularly by those who suffered from Covid more than once. The loose tentacle of ‘ long covid ‘ hangs on with its links to prior Covid vaccine status not sufficiently known. In short, breakthrough in understanding ‘ immunosenescence ‘ may help provide relevant answers to both the medical community and general public aloke to allay both genuine and ‘ floating ‘ anxiety around. Dr Murar E Yeolekar, Mumbai.
Re: What do we know about the adaptive immune response to covid-19?