Published studies from many scientists and virologists, warning that these particular types of vaccines have never been approved in the past because the actual mechanism may worsen COVID-19 disease due to something known as "Antibody-Dependant Enhancement".
It is not "Safe" for everyone - "Short-Term" Adverse Effects including Death.
Australian Infection Fatality Rate from COVID-19 is <0.1%
There are laws against mandating experimental medical procedures which COVID-19 vaccines currently come under.
Health professionals cannot voice their professional medical opinion if it doesn't match the government's medical opinion or interferes with the governments vaccination policy.
There are no Approved COVID Vaccines in Australia, and they are still in clinical trial.
All currently available vaccines are defined as experimental - by the vaccine manufacturers