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Can one catch chicken pox when they took the vaccine more than 20 years ago?

I have adult chicken pox which is pretty severe, my partner is coming back from overseas tomorrow, she had the vaccine many years ago. Is there a chance that she will catch it? If so, to be safe, is bringing her to get a blood test to see if the immunity is still present alright thing to do? If vaccine is not present and she does indeed catch it, can one take the vaccine again to prevent symptoms immediately after?

Public Comments

1. The chicken pox can "evolve", which means that the vaccine is kinda useless. but if you do take the vaccine again - if you have it in your House ??- i wouldn't do it, because the pox might get immune to the vaccine, ask your doctor he knows best ;) i'm just a weird student who had a very little bit of medicine study
2. yes it may recur again under special conditions. if ur partner would have a low immune system, ur virus could still infect her, even though she has proper wbc's to fight the infection. yes, to be safe, you can have her a blood test called a TITER TEST, which counts the antibodies which could defend her on a particular infection especially VARICELLA(chicken pox). If she did catch it, no need for her to take another vaccine, because the goal of vaccination is to sensitize the body from the new organism, making new memory cells to fight off if the same organism infects her body again. but, since hypothetically, she had chicken pox, no need for sensitization since she has been sensitized when she had chicken pox. Chicken pox can recur but off different organism. From varicella virus it becomes a herpes zoster virus on the 2nd time around. varicella viruses evolves into herpes zoster, if ever you'll have it, it would be called SHINGLES. - M.D.