READ MORE: Supplements: Four supplements linked to 'risky' heart palpitationsThe worry is that as well as causing symptoms similar to Alzheimer's disease, that COVID-19 may increase the risk of the disease in the long run.
However, it is too early to tell whether this is the case, partly because there's no long-term data and partly because this study is one of the first to suggest a link.
As a result, it cannot be said for certain COVID-19 increases the risk of Alzheimer's or dementia. Columbia University's Andrew Marks expressed a similar opinion, adding the possibility COVID-19 could be a new novel neurological condition.
Marks added: "One interpretation of these findings is that long Covid could be an atypical form of Alzheimer's and/or that patients who had severe Covid could be predisposed to developing Alzheimer's later in life. "Meanwhile, in a UK first, an employment tribunal has ruled a long Covid could be classified as a disability after a charity caretaker brought a case of discrimination against their employer.