It will be interesting in Australia to see which of the three vaccines go where in the country.
The government has all three on the books to be supplied when the authorities have done their checking.
The two American vaccines require storage at -70o C, whilst the UK one can be stored at normal refrigeration temperature.
There will not be many places outside the major cities which will be able to handle the -70o vaccines, as they do not have the basic facilities for that sort of temperature.
AC