Overview of vaccine efficacy and safety

Thus, the false promise of very high protection against “symptomatic infection”, found during official vaccine trials, was simply based on very high short-term serum antibody levels mimicking mucosal immunity. Conceivably, the pharmaceutical companies may even have known that this was just a (very lucrative) “flash in the pan” and not a lasting protective effect.

Covid Vaccines: The Good, The Bad, The Ugly