Mainstream rebuttal

 Byram Bridle’s claim that COVID-19 vaccines are toxic fails to account for key differences between the spike protein produced during infection and vaccination, misrepresents studies - Health Feedback

In late May 2021, the claim that COVID-19 vaccines could cause blood vessel damage to vaccinated people went viral on social media platforms, including Facebook, Instagram, Reddit, and Twitter. Many posts and articles (see examples here and here), like this article from LifeSiteNews, based this claim on a 28 May 2021 radio interview between the Canadian broadcaster Alex Pierson and the immunologist Byram Bridle. The interview received more than 39,000 interactions on Facebook, according to the social media analytics tool CrowdTangle.

During the interview, Bridle claimed that the spike protein produced through COVID-19 vaccination, which generates immunity against the disease, enters the bloodstream and can damage the blood vessels and brain. Scientists who reviewed this claim for Health Feedback found it misleading because it misrepresented the results from scientific studies and was based on cherry-picked information.

Bridle’s claim was based on three assumptions:

1. The spike protein from SARS-CoV-2 alone is the main cause of blood vessel damage in COVID-19 patients.
2. The vaccine-derived spike protein damages the body in the same way as the spike protein produced during viral infection.
3. The vaccine-derived spike protein enters the bloodstream and accumulates at harmful levels in tissues, such as the spleen, bone marrow, liver, adrenal glands, and ovaries.

In this review, we explain why these three assumptions are unsupported by current evidence.

[Sciences/Pharmacokinetics] Do nano-particles of the Pfizer COVID-19 vaccine cross the blood-brain barrier and infect your brain with mRNA (or will fritz your gonads)? – The Blood-Brain Barrier Scientist (wordpress.com)

What about ovaries? Well we are in the same ballpark than kidneys and indeed nothing really much about (0.1%ID after 48 hours). Interestingly, the author hyper focused on female gonads and occulted to show that male gonads (testes) were getting the same %ID (0.07%). I don’t think it was an accident from the author, just a sign of a deliberate attempt to manipulate the narrative by spinning the numbers. 
And last, brain, my favorite organ. The amount entering the brain is maybe the lowest of our organ of interest as we measured a meager 0.02% ID there. Keep in mind, we have to be careful on this number as we may have an overestimation here. 

we would need to inject about 60’000 doses of the Pfizer vaccine in ONE girl (91’000 doses if you are a 70-kgs adult). That’s about half one-fourth of all doses distributed to Amarillo until now given to only ONE person [EDIT: One 12-year old teenage girl that is in the 50th percentile], ALL AT ONCE! You see where we going? The very extreme implausibility of the claims that COVID19 vaccines affect ovaries and the brain.
To finish it up, we can also look at the actual mRNA and luciferase.
We know that 8microg/kg was sufficient to see some liver activity, but no activity in gonads and brain. How does it translate to humans? First, lets apply the allometric scale (68x). We would need 544microg/kg for the HED, and translated to a 12-years old girl that would be 21760microg of mRNA delivered, which is about 725 doses of Pfizer given in ONE person at once! You can see that since we cannot detect notable activity if I give 725 doses at once, chance are I will not detect any activity when given a single dose or even two doses of Pfizer.