On: Outbreak of common colds at Antarctic base after 1...

[nelaboras]

Viruses also can stay inactive in the body for years, see herpes as an obvious example. No idea if that can also be true for flu viruses though.

[cpncrunch → nelaboras]

True for herpesviruses as they infect the immune system, but rhinovirus and coronavirus don't reactivate.

[ComputerGuru → cpncrunch]

And chickenpox infects the nervous system.

[cpncrunch → ComputerGuru]

Chickenpox is a herpesvirus too, although very different symptoms to "common cold".

[ComputerGuru → cpncrunch]

That’s true, but I felt the need to call out the nervous system component of the picture.