Not entirely sure what GP is talking about, but just off the top of my head, this is the situation for anyone who's ever had chickenpox: you get chickenpox, the

Not entirely sure what GP is talking about, but just off the top of my head, this is the situation for anyone who's ever had chickenpox: you get chickenpox, the sores appear and then go away, but the virus stays in you. If you become immunocompromised/stressed later on in life it can re-emerge as shingles (decades later even).