Introduction:
Before the global Covid-19 pandemic caused by the SARS-CoV-2 virus, mRNA based vaccines had never been administered to the public outside of a single clinical trial that was not completed at the time. However, within the space of 9 months these experimental vaccines were administered to millions through an emergency use authorization (EUA).

Aim:
The aim of this article is to raise awareness that medical science can be biased due to social and economic influences, especially during high stress epochs in history. Scientists should be conscious of always being objective and skeptical regardless of what is happening in the wider world.

Material and methods:
A literature survey was performed examining the reporting of severe adverse events (SAEs) in articles published between 2020 and 2024.

Results and discussion:
From 2020 to 2024, the literature has gone from claiming there are absolutely no SAEs from mRNA based vaccines (2020/2021) to an acknowledgment of a significant number of various SAEs (2023/2024); including but not limited to neurological complications, myocarditis, pericarditis and thrombosis.

Conclusions:
The early scientific literature was biased, so as not to report SAEs, due to social and political concerns and overwhelming corporate greed. Only in the last year have scientists been able to publish articles that acknowledge a high number of SAEs linked to mRNA based vaccines. This should act as a warning that science should be completely objective when evaluating health risks, but can often be influenced by social and economic considerations.