Did Bernoulli sleep before he found the curve of quickest descent?
Can all this vax shuffling around (Australia <-> Poland, Australia <-> Singapore) significantly increase the likelihood of quality-control issues? It's my understanding that the Pfizer vax is temperature-unstable, and I don't really have much confidence in the underlings who man the medical supply chain. There was that Moderna contamination case in Japan only recently.
I'm not really concerned about the extremely rare adverse events associated with the vaccines in their intended form. I wonder why anti-vaxxers don't seem to focus all that much on what can go wrong as the intended product meets real-world manufacturing and supply chains.