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According to recent studies in the UK, Israel, and US, those who are vaccinated have, on average, a 50% lower risk of developing long COVID.
The realest thing to anyone is themselves. The further from the self the less real things feel. For example, we know about the stars and distant galaxies but the fly buzzing our ear is more important and “real” as to steal our attention. While we have the power to imagine great things and empathize, direct experience is more important because it involves the “I”. Our wants, needs, and desires exceed the realness of all else.
A preliminary study of brain imaging taken of before COVID-19 infection and after showed a reduced amount of gray matter thickness in the frontal and temporal lobes. This seems to explain some of the symptoms like loss of smell and taste (associated with the olfactory bulb) as well as other side effects like memory loss.
A Household Pulse Survey (HPS) found that more than 14% of US adults have or had Long COVID. Across all age groups, the 40-49 year old had the highest percentage at 18.8%. This could indicate a staggeringly large number of people will have lasting health issues due to COVID-19 and was a key contributer to the labor shortages in 2022.
A paper published in Nature looked at brain autopsies of people that died from COVID-19. Brain endothelial cells were found to be infected and there was an increase in string vessels (lost capillaries).
A study in China of COVID-19 survivors (median age 59) who were hospitalized found that half had a persisting symptom one year later—Long COVID. That includes shortness of breath, fatigue, and mental health issues such as anxiety depression. It also found a higher prevalence of problems with mobility and pain and discomfort than the control group.