The odds of diagnosing brain fog, dementia and epilepsy among those who were infected with Covid increased, two years after catching the infection, with the withdrawal of a study conducted by Oxford University.
According to the study, this was more common in Covid patients than with other types of respiratory infection.
On the other hand, it was found in the research, that the diagnosis of anxiety and depression did not increase in children and adults two years after infection with Covid.
More research is needed to understand why and how Covid causes other health conditions.
Experts say that the virus has disrupted the daily lives of the infected, and previous research had shown that infected people face an increased risk of developing brain and mental illnesses in the six months following infection with Covid.
The study looked at the risk of developing 14 types of disorders in 1.25 million patients two years after contracting Covid, most of them in the United States. She then compared the results with a similar number of people who had other respiratory illnesses.
And the following cases appeared in those who contracted Covid, after two years:
• Dementia, stroke, and brain fog in adults over 65 years of age.
Brain fog in adults between the ages of 18 and 64 years.
Epilepsy and mental disorders in children, although the risk is generally slight.
The likelihood of children developing epilepsy after contracting COVID-19 was 260 in 10,000, compared to 130 in 10,000 in those who developed other respiratory disorders.
The risk of developing psychotic disorders also increased to 18 out of every 10,000 after infection with Covid, but it is still a rare condition.
Some disorders become less common more than two years after injury, including:
Anxiety and depression in children and adults.
The risk of anxiety and depression continues to rise in adults for less than two months, before returning to normal levels, research shows.
Professor Paul Harrison, lead author of the study from the Department of Psychology at Oxford University, said it is worrying that the diagnosis of some disorders such as dementia and seizures increases significantly after two years of infection with Covid.
The good news, he added, is that the depression and anxiety patients suffer from after contracting Covid does not last long and does not affect children.
The researchers said that the proportion of people suffering from symptoms can not be ignored, but it does not constitute a “tsunami”, and some need health care, which increases pressure on health services.
The study, published in the Lancet Psychiatry journal, did not follow patients more than two years after their diagnosis, but rather analyzed the number of people who were re-diagnosed after two years.
The study also did not examine how bad the condition was after diagnosis and how long it took, though similar to other infections.
The study did not call these cases “long-term Covid”, although brain fog related to poor memory and concentration was a common symptom.
The possibility that the omicron mutant, which began spreading last winter, will cause “long-term Covid”, appears less than previous mutants, according to the latest research.
The latest study found that although omicron is milder than the delta mutant, it appears that it can lead to brain injury and mental illness.
The aforementioned study has limitations, as it did not examine how Covid causes brain and psychological disorders, although some experts say that the phenomenon can be explained by the formation of small clots in the blood.
Dr. Jonathan Rogers and Professor Glenn Lewis from University College London, said that the study highlighted some clinical features that require additional research, and added that additional studies are needed in order to confirm what was reached in the said study.
Professor David Menon from Cambridge University said hospitalization with Covid is as effective as being 20 years old (between 50 and 70).
Paul Garner, Professor Emeritus in Integrating Evidence from the Department of Tropical Diseases at the University of Liverpool, said the Covid pandemic has changed people’s lives in many ways.
He added that the slight increase in the incidence of dementia and mental disorders is more likely to be related to the state of frenzy we experienced than to be related to the virus itself.
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