A study by Brogna et al. discovered that spike protein production persists in 50% of COVID-vaccinated individuals for a minimum of six months after vaccination.
Contrary to initial claims of the vaccine's spike protein being harmless and short-lived, this study challenges those assertions.
The study employed mass-spectrometry to detect a specific amino-acid sequence unique to the vaccine-induced spike protein.
mRNA COVID vaccines encode genetic instructions to produce the spike protein, allowing the virus to infect human cells.
Pfizer and Moderna modified the spike protein to be stable in the body through "prefusion stabilization."
The study focused on a specific, genetically modified spike protein component present only in the COVID vaccine and not in the natural SARS-CoV-2 virus.
Researchers conducted the study in southern Italy, analyzing 40 subjects, including vaccinated, unvaccinated, and COVID-positive individuals.
Only the vaccinated subgroup was found to carry vaccine-derived spike protein, detectable up to six months post-vaccination.
The specific spike protein fragment was present in 50% of the vaccinated sample analyzed, regardless of SARS-CoV-2 IgG antibody titers.
Spike protein was detectable from a minimum of 69 days to a maximum of 187 days after vaccination.
The study did not provide an endpoint for spike protein production, highlighting a limitation in the study design.
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