I aim to hold zero beliefs on any topic - I may have some but when I find them I let them go. This leaves me free to hold only knowledge, emotions and thoughts. The absence of belief allows me to adjust thoughts freely while fully feeling - unhindered by unreasonable attachment. Emotional processing allows the emotions to move freely enough to avoid the emotional equivalent of bias introduced by beliefs.
I am currently reviewing a peer reviewed paper that was just published on the topic of vaccines making (human) people sick - I will post on it when I can.
Vaccines are leaky when they do not prevent transmission. The majority of older vaccines for humans do prevent transmission, but the COVID ones don't. Leaky vaccines give a false sense of security, but more than that, they provide a breeding ground in hosts for more lethal forms of viruses. When rules are being inserted into society to limit the freedom of those who are unvaccinated, even when the vaccinated are just as likely to pass on pathogens as unvaccinated - then we have a major ethical problem (to add to the many that exist just by the action of trying to limit the freedom of someone else based on your own thinking). With unvaccinated people actually being blamed for driving transmission, it is only right to highlight that there are several pathways involved which actually mean that it is the vaccinated who may be driving transmission and that if we are going to be controlling one group more than the other, it might be best to restrict the freedoms of the vaccinated more than the unvaccinated. We don't know the long term outcome from this experiment and we wouldn't usually allow such a situation.