"In addition to my previous letter, I am writing to you to address the recent discovery of host cell DNA fragments within the Pfizer and Moderna COVID-19 mRNA vaccines," Ladapo noted in his new letter.
"This raises concerns regarding the presence of nucleic acid contaminants in the approved Pfizer and Moderna COVID-19 mRNA vaccines, particularly in the presence of lipid nanoparticle complexes, and Simian Virus 40 (SV40) promoter/enhancer DNA. Lipid nanoparticles are an efficient vehicle for delivery of the mRNA in the COVID-19 vaccines into human cells, and may therefore be an equally efficient vehicle for delivering contaminant DNA into human cells. The presence of SV40 promoter/enhancer DNA may also pose a unique and heightened risk of DNA integration into host cells," he noted.
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