There is much research to know about the effects of COVID-19 on many parts of the human body, especially the immunity system. Researchers have proved that COVID-19 symptoms can also affect the people who have taken the vaccine. Researchers at the Alzheimer’s Association International Conference (AAIC) 2021 further confirm the links between COVID-19 and symptoms of Alzheimer’s disease.

Scientists who are involved in the research at the AAIC 2021, held online, have found links between COVID-19 and longer-term health care issues, including symptoms of Alzheimer’s disease. The information contained in the research helps to explore more details about the neurological effects of COVID-19.


COVID-19 primarily affects the respiratory system of a human being. The Center for Disease Control Trusted Source notes that COVID-19 symptoms can include a few respiratory problems, low oxygen levels and shortness of breath, and many other issues affecting multiple organs across a  human body. 

Many studies found that the effects of COVID-19 do not always end after the condition is good. As in the pandemic situation, it leaves much evidence suggesting that many people who had recovered from COVID-19 were still having various symptoms. 

It is known as long COVID. According to the researchers, symptoms of long COVID may or may not comprise “profound fatigue, breathlessness, cough, chest pain, palpitations, headache, joint pain, myalgia and weakness, insomnia, pins and needles, diarrhea, etc.

Neurological issues under the spotlight

Researchers presented several studies that provide information on the neurological issues caused by the longer-term effects of corvid-19. According to the researchers, these new data points to massive trends of the COVID-19 infections which may even lead to lasting Alzheimer’s symptoms.”

Signs of Alzheimer’s disease

In another study presented at the conference at New York University, Grossman School of Medicine and his colleagues explored the possible links between COVID-19 and symptoms of Alzheimer’s disease. The researchers took a plasma sample of 310 people who the COVID-19 had infected. Out of those, 158 had neurological symptoms most frequently, and the rest of 152 did not.

In the patients who did not have issues with developing COVID-19 but then developed neurological symptoms, the researchers found an increase in the symptoms of Alzheimer’s disease and brain injury compared with the patients who did not have Alzheimer’s symptoms. These included neurofilament issues, glial fibrillary acid, and ubiquitin carboxyl-terminal hydrolase. The researchers also found a relationship between these markers and C-reactive peptides.

Prof. Wisniewski explains that These findings tell that patients who had COVID-19 may have an 

Alzheimer’s-related symptoms and pathology. Much research is required for studying these biomarkers’ impact on the people who had COVID-19 in the long term.”

Oxygen deprivation

Researchers found the relationship between cognitive issues linked to COVID-19 and blood oxygen levels. Dr. George D. Vavougios, a postdoctoral researcher for the University of Thessaly in Greece, had been hospitalized with mild or moderate COVID-19, and then after two days, he got discharged. 

Half of the participants had short-term memory impairment as well as multidomain impairment without short-term memory issues. The researchers found a correlation between cognitive scores and being older, having waist issues, and a higher waist-to-hip ratio.


We hope that the above paragraph will help you know about the study on the covid-19 and Alzheimer’s diseases. It mainly affects the respiratory system of the human body. For more information about covid, please stay connected with us.



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