COVID vaccine safety. Altered immune systems

Mainstream news outlets like Reuters reassure us that COVID-19 vaccines do not “weaken the immune system”. Source.

An article on health science preprint server medRxiv says: “Little is known about the broad effects of the new class of mRNA vaccines, especially whether they have combined effects on innate and adaptive immune responses... Interestingly, however, the BNT162b2 vaccine [Pfizer/BioNTech] also modulated the production of inflammatory cytokines by innate immune cells upon stimulation with both specific (SARS-CoV-2) and non-specific (viral, fungal and bacterial) stimuli. The response of innate immune cells to TLR4 and TLR7/8 ligands was lower after BNT162b2 vaccination, while fungi-induced cytokine responses were stronger. In conclusion, the mRNA BNT162b2 vaccine induces complex functional reprogramming of innate immune responses, which should be considered in the development and use of this new class of vaccines.” Source.

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