Does chickenpox vaccine protect into adulthood?

[Bovneydazzlers]

I’m thinking of getting my DS 2.5 vaccinated. My friend’s DD was recently hospitalised for chickenpox (rare I know) and also thinking about it for the less important reason of chickenpox not happening at an inopportune time (holidays/work etc).

I’ve been trying to research it but getting conflicting info. Does chickenpox vaccine protect into adulthood? I’ve heard it would only give 75% protection, which to me isn’t a big risk considering the severity of the disease in adults? But other things I read says it gives the same long term protection as actually having the disease.

Can anyone advise?

[PeterPiperPickedSeaShells]

We vaccinated our child. My understanding is that the vaccine lasts for 20 years, but as the vaccine has only been available for 20 years I assumed that it's just not tested beyond that time

[Bovneydazzlers]

That makes sense. I think there is a booster at 10 years if I’ve read correctly? I just don’t want to vaccinate if it’s increases the chance of adult chickenpox but sounds like it’s not as clear cut as saying 25% chance getting it.