Well well well - UKHSA lied in a FOI answer.
They do know where the SARS-CoV-2 virus stock came from, it's here:
"The stock of virus used for all of UKHSA’s LFD evaluations was cultured from a stock supplied by Victorian Infectious Diseases Reference Laboratory, Doherty Institute, Melbourne and sequence authenticated. This work is ongoing in UKHSA.
More information on UKHSA’s virus stock can be found in the publication at the below link:
https://www.science.org/doi/pdf/10.1126/sciadv.abg7996"
Looking at the link that the UKHSA included is a scientific paper titled “Immunological and pathological outcomes of SARS-CoV-2 challenge following formalin-inactivated vaccine in ferrets and rhesus macaques”.
Very interesting read and if I got it right every animal was euthanised within 14 days of getting the shot.
Isn't that also the Melbourne lab linked to the WHO or someone? I vaguely recall there was something about this I read back in mid-2020 as Melbourne is also in Victoria the home of Dan the Man the lockdown King.
Yes it is:
https://www.doherty.edu.au