Nine months after it was rolled out, the AstraZeneca Covid vaccine has finally reached the Antarctic.
This is the most southerly despatch yet for the jabs developed at Oxford University.
Apart from some cases at a Chilean base, Antarctica has been Covid-free.
The international science agencies want to keep it that way.
As the new summer research season approaches, strict health protocols will again be in place.
And all the while, the doses had to be kept at their required 2-8C storage temperature in a special transport container.
A first dose of the AZ vaccine is now in the arms of the station's scientists, engineers and support staff, administered by the doctor on site. The second jab will be given in four weeks' time.