Well, this is wild. From 1973: An outbreak of common colds at an Antarctic base after seventeen weeks of complete isolation
This was published on NCBI:
Abstract:
Six of 12 men wintering at an isolated Antarctic base sequentially developed symptoms and signs of a common cold after 17 weeks of complete isolation. Examination of specimens taken from the men in relation to the outbreak has not revealed a causative agent.
An outbreak of common colds at an Antarctic base after seventeen weeks of complete isolation