One has to wonder:
https://medium.com/microbial-instincts/spike-proteins-used-in-covid-19-vaccines-are-they-safe-e1592b6ba8d3"
Spike Proteins Used in Covid-19 Vaccines: Are They Safe?A study titled “The S1 protein of SARS-CoV-2 crosses the blood-brain barrier in mice” was published in Nature Neuroscience this month. Herein, researchers at the University of Washington inoculated a dose of S1 portion of SARS-CoV-2 spike protein — without the whole virion or genome — into the blood or nose of adult age mice.
When injected into the bloodstream, the study found that the spike proteins were gradually cleared from the blood but got uptaken by the brain. After performing a series of experiments, the study discovered that SARS-CoV-2 spike proteins cross the blood-brain barrier via adsorptive transcytosis. In this process, the protein — in this case, the spike proteins — enters the cell through its surface glycoproteins.
Whether the ACE2 receptor — which SARS-CoV-2 normally uses to infect cells in the lungs — is involved in the brain uptake of spike proteins is uncertain. Administering ACE2 into the mice to occupy the ACE2 receptors did not block spike proteins entry but rather enhanced it. And the mechanisms responsible for this remain unclear.
Notably, inducing inflammation in the mice with lipopolysaccharide (LPS; a bacterial toxin) treatment further enhanced the brain uptake of spike proteins. This is because the inflammation had disrupted the blood-brain barrier integrity, making it more permeable to foreign invaders.
When nasally inoculated, the spike proteins also invaded the brain, but to a lesser extent than when injected into the blood. Interestingly, only <1% of the spike proteins from the nose entered the blood. This suggests that spike proteins can enter the brain through the olfactory (smell sensing system) route, without the need to bypass the blood-brain barrier defense.
Overall, in mice, the spike protein of SARS-CoV-2 has the ability to cross the blood-brain barrier. But that’s the extent this study shows. What happens after that was not studied. For example, will the mice became sick and show neurological symptoms or behavioral abnormalities like cognitive impairments or appetite changes? Or will the mice's brain respond to the spike proteins with unhealthy levels of inflammation?"
https://medium.com/microbial-instincts/spike-proteins-used-in-covid-19-vaccines-are-they-safe-e1592b6ba8d3______________________________________________
[Edit add 2-9-22] More on vaccine injury patients not being treated if they mention the word "vaccine".
4:47:00 mark
https://rumble.com/embed/vqjwua/?pub=4
