Is a 2nd MMR necessary?

[diddl]

Daughter (12) has just come home with a slip with to having MMR again.

She had it as a baby & I thought it was a lifelong thing.

Oldest hastn´t been offered it again.

Is this a new thing?

Have googled & the thinking seems to be it´s for the very few who don´t get 100% with just one

Wouldn´t it be better to do a blood test to see who needs it & who doesn´t rather than vaccinate everyone when the majority don´t need it?

did she only have it once then as the current schedule gives it once at 13 months and the second dose at 3 years 4 months? The first dose leaves up to 10% unprotected and the second dose improves that figure.

I don't enjoy blood tests -- no, take that back, I ruddy hate having blood taken and having it taken out of DC would be so much worse.
I'd much rather have the jab myself (and for DC to have it).
Another jab should ensure 99% chance of immunity.

Yes she just had the one at about a year old.

In the "red book" it isn´t listed as being necessary again.

My son is 2yrs older & wasn´t asked to have it again.

Well she´s 12 so a blood test wouldn´t bother her tbh.

I just wonder where the information comes from after many years of just the one, that actually no it isn´t good enough & another is needed.

immunity does decrease with age, I had to have the mmr before I left the hospital after having dd3. was detected from my blood tests

If you do a bllod test, and then vaccinate the people who need it, then that would be worse then just vaccinating everyone, IMO. An additional MMR that isnt needed isnt going to do any harm (as if the person is already immune then their immune system will just deal with the vaccine), and for most people a blood test is more painful than a vaccine.
It will be more expensive to take the extra time to take blood, and pay for the lab testing, and recall of the people who need the vaccine then it is to just do the vaccine in the first place for the people that you think might need it.

the second dose was introduced in 1996 as there were several outbreaks of mumps in teenagers. The second dose increases the protection offered. My brother didnt have the second dose and got mumps at the age of 26 and ended up deaf in one ear due to it. My dd is nearly 7 and had 2 MMR's - one at 13 months and one at 3 1/2.

mumps outbreak

How strange as my oldest was born in 1996!

I had it twice at age 25 (too old to have been offered it first time around, so had had separate M and separate R). They are still consistently having issues with outbreaks at universities, as the take up for the second dose is not brilliant, which may be why it's being offered sooner.

My DS was born in 1995 and he had his second dose as part of his preschool jabs (sept 2000) as did DD born in 1997.