[Paul Ward]

You've hit the nail on the head flighter - the Antarctic population is very different to the population anywhere else, temperature is co-incidental here. Doctors are chosen partly for their ability to do anything medical that needs doing, checking blood types seems quite a straightforward task and I have never heard of a transfusion taking place in Antarctica. Having a doctor at bases is significant over-manning in terms of what they are needed to do.

There is a reason people can't find jobs like medical technician / archivist etc. in Antarctica that I get asked about and then not believed when I answer.