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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To not want baby near unvaccinated toddler?

258 replies

victoriaspomge · 09/02/2026 21:53

So basically my partner wants his half brother's (same dad) younger half brother (same mum) to come and meet our baby.
He has a daughter who is 2 years old who he says is our kids cousin.

My partner is no relation to him or his daughter biologically but because they share a half brother he feels as if it's his brother as well and that they are family.

He dosent really know him and doesn't have his number and has only met him in the last 10 years.

They only hang out if it's with their mutual half brother.

I know the 'brother' is very anti vax and has not got his 2 year old vaccinated despite living in a city where it has had a lot of cases of measles.

Baby is too young to be have the MMR and I am extremely worried about my baby meeting this 2 year old.

AIBU to feel like this?

BoredZelda · 10/02/2026 14:22

StandingSideBySide · 10/02/2026 14:17

Ours didn't all the time
There was a room for babies but at meal times, parties and in the gardens they were all together
The same goes for a nursery a friend runs

Plus of course there are those kids who aren’t vaccinated at the 12 and 18 month point in the same space as those that might be just a few months younger but not old enough for the vaccine.
Let’s also not forget older unvaccinated siblings of babies

Edited

generally

Most do so because of staffing requirements. You aren’t going to have a bunch of toddlers who could be looked after by fewer staff, in a room where the staffing ratio is 1:3.

Thechaseison71 · 10/02/2026 14:22

Mumtobabyhavoc · 10/02/2026 14:06

Because that's exactly what we were told and initial vaccinations were more effective on earlier strains. Now it's about 45% effective against infection and 57% effective preventing serious disease. Masking when ill/any symptoms and avoiding others should still be practised. Still important to get the vaccine.
Some vaccines are more effective than others based on the nature of the virus. In the case of measles the vaccine is 97% effective.

Why is it important to get the COVID vaccine for most people

Thechaseison71 · 10/02/2026 14:20

BoredZelda · 10/02/2026 14:07

Nurseries generally have babies and toddlers separated so this isn’t much of an issue. Nursery is also a necessity so you weigh up risks. That doesn’t mean you allow a free for all, all the time.

The baby room in DS nursery was 0-2 years. Thought that was pretty commonplace

BoredZelda · 10/02/2026 14:19

Thechaseison71 · 10/02/2026 11:13

What if it had been your own toddler who COULDNT have the vaccine? What do you do? Bung them into care for a year until the baby was vaccinated?

If I had a child who couldn’t be vaccinated, I’d have taken each situation on a risk by risk basis. Many nurseries insist on vaccination, except where a child can’t be vaccinated. I’d probably look in to that. I’d also take advice from the GP. I can’t imagine how difficult it must be to have a child you can’t protect. That’s why if find it difficult to understand why people choose not to.

Thechaseison71 · 10/02/2026 14:19

ContentedAlpaca · 10/02/2026 13:42

Yes but whooping cough immunity from the vaccine wanes quite quickly.
They didn't offer it in pregnancy when I had my children so I haven't been offered it since I was six and had my last set of boosters.

How quickly? Surely if that's the case most people are unprotected?

StandingSideBySide · 10/02/2026 14:17

BoredZelda · 10/02/2026 14:07

Nurseries generally have babies and toddlers separated so this isn’t much of an issue. Nursery is also a necessity so you weigh up risks. That doesn’t mean you allow a free for all, all the time.

Ours didn't all the time
There was a room for babies but at meal times, parties and in the gardens they were all together
The same goes for a nursery a friend runs

Plus of course there are those kids who aren’t vaccinated at the 12 and 18 month point in the same space as those that might be just a few months younger but not old enough for the vaccine.
Let’s also not forget older unvaccinated siblings of babies

ContentedAlpaca · 10/02/2026 14:09

victoriaspomge · 10/02/2026 14:05

A a lot of OH's friends are anti vaxxers and a few have kids who are aged 1 - 2.

OH likes to talk about vaccines to them to get their input and at least 3 (including the brother) have chosen not to have theirs vaccinated.

It a concern as they live in Birmingham where there is a quite a few measles cases going round.

My baby does go out daily, parks, shops, days out etc but with the UK losing its measles elimination certificate it just got me worried when OH mentioned about his friends unvaccinated kids and them wanting their kids to meet the baby.

It was eliminated briefly between 2017 and 2018, then again briefly in 2021 due to the pandemic.

BoredZelda · 10/02/2026 14:07

StandingSideBySide · 10/02/2026 13:52

Whilst I agree OP is not being unreasonable
I also agree
vaccinations in the U.K. are not mandatory and having a child vaccinated does not give them complete immunity
approximately 3% of vaccinated children can contract and pass on measles

I do wonder how people cope when their kids go to nursery with many starting before 12months so unvaccinated and more before 18months when the second mmr dose is due.

Nurseries generally have babies and toddlers separated so this isn’t much of an issue. Nursery is also a necessity so you weigh up risks. That doesn’t mean you allow a free for all, all the time.

Aluna · 10/02/2026 14:07

randomchap · 10/02/2026 12:37

You don't have kids but your eldest got it?

What?

😆

Mumtobabyhavoc · 10/02/2026 14:06

TaraC25 · 10/02/2026 13:42

So then it raises the question of why are those people insulted by that? If they're confident of their choices and adamant that their way is correct, why does it matter what a stranger says or insinuates?

At no point have I disclosed my childrens vaccine status. Also, consider that just because some children have had some vaccines, doesn't mean they have had ALL vaccines.
People can change and adjust, situations change etc.

I know this post isn't about vaccines in general and it's gone ridiculously off subject, but I know of people, adults, that took the covid vaccine and genuinely believed it 100% stopped them catching it, or passing it on. Because they didn't do any research before taking it, to weigh up whether it was a justified risk. And they were really shocked when they realised it didn't stop transition, because they were led to believe it would make everyone bullet proof.

Because that's exactly what we were told and initial vaccinations were more effective on earlier strains. Now it's about 45% effective against infection and 57% effective preventing serious disease. Masking when ill/any symptoms and avoiding others should still be practised. Still important to get the vaccine.
Some vaccines are more effective than others based on the nature of the virus. In the case of measles the vaccine is 97% effective.

victoriaspomge · 10/02/2026 14:05

A a lot of OH's friends are anti vaxxers and a few have kids who are aged 1 - 2.

OH likes to talk about vaccines to them to get their input and at least 3 (including the brother) have chosen not to have theirs vaccinated.

It a concern as they live in Birmingham where there is a quite a few measles cases going round.

My baby does go out daily, parks, shops, days out etc but with the UK losing its measles elimination certificate it just got me worried when OH mentioned about his friends unvaccinated kids and them wanting their kids to meet the baby.

OP posts:
StandingSideBySide · 10/02/2026 13:52

TaraC25 · 09/02/2026 23:09

So is OP intending to avoid all other babies and toddlers then?

Because this toddler certainly won't be the only unvaccinated child they come into contact with. And I'd say as long as the toddler isn't kissing the baby all over the mouth, it's not a risk to it anymore than any other relatives are?

Whilst I agree OP is not being unreasonable
I also agree
vaccinations in the U.K. are not mandatory and having a child vaccinated does not give them complete immunity
approximately 3% of vaccinated children can contract and pass on measles

I do wonder how people cope when their kids go to nursery with many starting before 12months so unvaccinated and more before 18months when the second mmr dose is due.

Mumtobabyhavoc · 10/02/2026 13:52

000ForFucksSake000 · 10/02/2026 13:32

A vaccine isn’t 100% either.
Just saying it’s a minuscule risk.

I think on balance it’s a reasonable one.
Getting all frothy towards antivaxers seems a distraction in this case.

They're different. It's not either or. You can't really compare.
The best protocol is for the pregnant person to be vaccinated in pregnancy then breastfeed to continue to pass on antibodies. And minimize/avoid exposure to non-vaccinated people during pregnancy and with baby postpartum. It's not difficult to do.

To say, Vaccination isn't 100% either is misleading. In measles, protection lasts a lifetime and it's about 97%. Vaccinated people don't spread the disease because if they become infected their viral load is minimal. Breastfeeding helps protect an infant for a short time only.

ContentedAlpaca · 10/02/2026 13:42

Thechaseison71 · 10/02/2026 13:08

Thought mums these days had whooping cough vaccine during pregnancy to protect the babies

Yes but whooping cough immunity from the vaccine wanes quite quickly.
They didn't offer it in pregnancy when I had my children so I haven't been offered it since I was six and had my last set of boosters.

TaraC25 · 10/02/2026 13:42

Mumtobabyhavoc · 10/02/2026 13:32

But, surely you see calling someone a "follower" is highly loaded and part of anti-vaxx lingo? It's an insult levied by many with extreme viewpoints. It's a gentler form of the oft-use used "sheep/sheeple" insult. Calling someone a "follower" on a thread about vaccination? 👀

So then it raises the question of why are those people insulted by that? If they're confident of their choices and adamant that their way is correct, why does it matter what a stranger says or insinuates?

At no point have I disclosed my childrens vaccine status. Also, consider that just because some children have had some vaccines, doesn't mean they have had ALL vaccines.
People can change and adjust, situations change etc.

I know this post isn't about vaccines in general and it's gone ridiculously off subject, but I know of people, adults, that took the covid vaccine and genuinely believed it 100% stopped them catching it, or passing it on. Because they didn't do any research before taking it, to weigh up whether it was a justified risk. And they were really shocked when they realised it didn't stop transition, because they were led to believe it would make everyone bullet proof.

Rewriteitifyoucan · 10/02/2026 13:39

TaraC25 · 10/02/2026 13:28

Well of course loosing a child at any age is sad. Children still die now, despite vaccines.

So your argument is that all children should receive a vaccine now, because 250 years ago some children died from something else?

The child mortality rate is much lower now, due to medical advances including...vaccination. Fewer children die or suffer lifelong complications of measles now because we have a vaccine to protect them. If we were to wind back the clock, more children would die of measles. Like they used to, before vaccines.

lunar1 · 10/02/2026 13:39

Didn’t the uk lose our measles eradication status or whatever it’s called? It would be a no from me until your child has had their mmr

Rewriteitifyoucan · 10/02/2026 13:36

MrsPicklesToBe · 10/02/2026 13:06

This is ridiculous some people need to seriously get a grip!! Does the toddler have measles or a deadly disease or leprosy ?!! No!! It’s fine to see the baby! Non vaccinated kids aren’t poisonous monsters 🙈

How silly. The toddler could have measles, that's the point. They haven't been vaccinated and we aren't a measles-free country anymore thanks to those who don't vaccinate their kids. So now there is a higher chance that an unvaccinated child is incubating measles at any moment in which case they do pose a terrible risk to a defenceless newborn. Breastfeeding does not confer measles immunity. Measles in a tiny baby is extremely dangerous and might leave that infant dead or disabled for life. No parent would knowingly want to take that chance.

Nearly50omg · 10/02/2026 13:36

Vaccines don’t mean your child won’t get anything? That’s not the way they work! They aren’t a miracle cure nor do they prevent a child Or adult contacting anything.

that said you don’t need to see or let your baby have contact with anyone you don’t want to! Your bf is welcome to go and visit them but you don’t want to see him or his child so you don’t have to and don’t need to!

Mumtobabyhavoc · 10/02/2026 13:34

TaraC25 · 10/02/2026 13:28

Well of course loosing a child at any age is sad. Children still die now, despite vaccines.

So your argument is that all children should receive a vaccine now, because 250 years ago some children died from something else?

Please,
The argument is to vaccinate rather than risk the worst case.

000ForFucksSake000 · 10/02/2026 13:32

Weeklyreport · 10/02/2026 12:14

While breastfeeding does pass on immunity it is not 100% so the baby can still be at risk of catching viruses.

A vaccine isn’t 100% either.
Just saying it’s a minuscule risk.

I think on balance it’s a reasonable one.
Getting all frothy towards antivaxers seems a distraction in this case.

Mumtobabyhavoc · 10/02/2026 13:32

TaraC25 · 10/02/2026 13:21

Don't put words in my mouth. People are capable of thinking and still choosing to follow. You've made an insinuation on my meaning.
I meant follower in the sense of that generally a majority vote wins.

The reality is that there is risk in any decision.
There is a PP whose child was injured by the vaccine itself; there are people here that have had measles, there are people that have not.

The madness comes in when certain posters say things like Anti-Vaxxers should be in prison. It is such a close-minded viewpoint and I will stand by my belief that absolutely no-one in the UK should lose the right to choose what they put in their, or their childrens, bodies.

But, surely you see calling someone a "follower" is highly loaded and part of anti-vaxx lingo? It's an insult levied by many with extreme viewpoints. It's a gentler form of the oft-use used "sheep/sheeple" insult. Calling someone a "follower" on a thread about vaccination? 👀

MonsteraDeliciosa · 10/02/2026 13:30

The reality is that there is risk in any decision.
There is a PP whose child was injured by the vaccine itself; there are people here that have had measles, there are people that have not

The risk of damage by vaccine is minuscule compared to the risk of damage by unchecked measles; it is a very dangerous and potentially lethal disease. We were measles free in this country before the rise of the anti-vaxxers. It's utterly lamentable.

The biggest "insanity" is allowing the resurgence of a deadly disease due to pig ignorance, selfishness and stupidity.

TaraC25 · 10/02/2026 13:28

GETTINGLIKEMYMOTHER · 10/02/2026 13:23

Anti-vaxxers might do well to walk around some old churchyard with graves from the 1800s or early 1900s, to see gravestones listing 2, 3, or even more children from the same family, who’d all died within a few weeks of each other, from some epidemic or other.

I still remember the one I walked round somewhere near Sheffield - it was so dreadfully sad.

Well of course loosing a child at any age is sad. Children still die now, despite vaccines.

So your argument is that all children should receive a vaccine now, because 250 years ago some children died from something else?

GETTINGLIKEMYMOTHER · 10/02/2026 13:23

Anti-vaxxers might do well to walk around some old churchyard with graves from the 1800s or early 1900s, to see gravestones listing 2, 3, or even more children from the same family, who’d all died within a few weeks of each other, from some epidemic or other.

I still remember the one I walked round somewhere near Sheffield - it was so dreadfully sad.