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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?

APatternGrammar · 10/02/2026 11:12

Thechaseison71 · 10/02/2026 11:09

How is it different? Youwould now any baby under a year old hasnt had mmr vaccine

And you would hope that the rest of that baby’s family including older siblings are vaccinated — as most are, since they want the best for their children, so it’s a rational assumption to make.

Thechaseison71 · 10/02/2026 11:09

JerryTubs · 10/02/2026 10:10

It’s different when you know someone definitely isn’t vaccinated though I should think. You don’t usually know these things so therefore you aren’t faced with the choice.

How is it different? Youwould now any baby under a year old hasnt had mmr vaccine

TaraC25 · 10/02/2026 11:09

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The insinuation is that my children are unvaccinated and in some way, suffering.

My childrens vaccine status and overall health has nothing to do with you, or anyone else.

MonsteraDeliciosa · 10/02/2026 11:06

TaraC25 · 10/02/2026 10:56

Nice. Resorting to insults and bullying - classy!

You know what's not nice?

Risking the lives vulnerable people and children who can't have vaccines, or who had and have, unknowingly, lost immunity. Anti-vaxxers destroy herd immunity, and herd immunity protects those people.

Anti-vaxxers and their children are disease vectors and the more disease vectors you have, the more a disease can circulate. The more it circulates, the higher the risk of mutation which would render the vaccine less effective if not useless. Then EVERYONE is at risk again.

It's quite silly for an antivaxxer to say you should respect their choice as they respect yours. Nah, our choices, as vaxxers, protect them; their choices are bloody dangerous for society.

randomchap · 10/02/2026 11:03

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TaraC25 · 10/02/2026 10:59

BoredZelda · 10/02/2026 10:50

Dr Steven James who had an issue with mass vaccination for NHS staff but said he was pro-vaccine for the groups who were at risk? Who chose not to have the vaccine for himself for his own reasons, but never said nobody should get it? Who has never spoken out against any other vaccine?

The “ICU doctor” who is largely now just touting his Weightloss programmes and £500 a session breathing classes?

He’s the guy you are basing your entire anti-vax stance on?

Good for him I say. Because the NHS doesn't pay well and it's not a great employer for staff morale, so if he has found a side hustle.. great!!

I'm not anti-vax. I'm pro-choice and anti-bullying!!

TaraC25 · 10/02/2026 10:56

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Nice. Resorting to insults and bullying - classy!

MonsteraDeliciosa · 10/02/2026 10:55

During the pandemic, approximately 100,000 NHS and social care staff were going to be sacked for not agreeing to have the covid vaccine trial.

Yeah, the measles vax is not a trial, though, it's a longstanding safe vaccination. A vaccination that had all but eradicated measles until idiots started refusing it.
The Anti-vaxxers are only to make the choice not to vaccinate their children because they're depending on everyone else vaccinating.

BoredZelda · 10/02/2026 10:50

TaraC25 · 10/02/2026 10:22

Nice assumption.

You will find that many highly intelligent and educated people don't get vaccines.
Look up Dr Steven James who gave his thoughts on the covid Vax, he is an ITU Doctor.

It's offensive to resort to insults and name-calling.

Edited

Dr Steven James who had an issue with mass vaccination for NHS staff but said he was pro-vaccine for the groups who were at risk? Who chose not to have the vaccine for himself for his own reasons, but never said nobody should get it? Who has never spoken out against any other vaccine?

The “ICU doctor” who is largely now just touting his Weightloss programmes and £500 a session breathing classes?

He’s the guy you are basing your entire anti-vax stance on?

randomchap · 10/02/2026 10:48

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TaraC25 · 10/02/2026 10:36

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The fact you think it's one doctor shows how uneducated you are on facts.
During the pandemic, approximately 100,000 NHS and social care staff were going to be sacked for not agreeing to have the covid vaccine trial. So it wasn't just one doctor, far from it.

This is entirely irrelevant to OPs situation other than pointing out that there are many people that make decisions different to our own; that doesn't make them selfish, stupid or careless. It makes them human. EVERY single one of us has autonomy over our own body and what we choose to put into it: if the OP doesn't want her child around an unvaccinated child that's her right... I still personally think it's a bit ridiculous, but that's the thing with opinions - they're like arseholes - we all have one and I'm absolutely fine with people disagreeing with me on that.

Im confident in the choices I made for my own babies and I respect people's right to make their choices too, even if they differ from my own.

TaraC25 · 10/02/2026 10:31

BoredZelda · 10/02/2026 10:25

You say this like it’s impossible. My daughter wasn’t around any other babies or toddlers before she was vaccinated. We don’t have any in our family and there was never a situation where it would happen.

There is no world where I would have introduced an unvaccinated toddler into our home before she was vaccinated.

Okay.
So if you go on to have another baby, are you going to stay indoors for the first 13 months? Because you surely will be supervising your older child to socialise; soft play, swimming, play dates etc and they will absolutely breathe the same air as others..!

Ultimately OP has the choice to stay in a sterile bubble for a long as she wishes, or as long as her circumstances allow and that is her right.

randomchap · 10/02/2026 10:26

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BoredZelda · 10/02/2026 10:25

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?

You say this like it’s impossible. My daughter wasn’t around any other babies or toddlers before she was vaccinated. We don’t have any in our family and there was never a situation where it would happen.

There is no world where I would have introduced an unvaccinated toddler into our home before she was vaccinated.

TaraC25 · 10/02/2026 10:22

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Nice assumption.

You will find that many highly intelligent and educated people don't get vaccines.
Look up Dr Steven James who gave his thoughts on the covid Vax, he is an ITU Doctor.

It's offensive to resort to insults and name-calling.

randomchap · 10/02/2026 10:18

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TaraC25 · 10/02/2026 10:12

JerryTubs · 10/02/2026 10:06

Oh kindly fuck off. If we didn’t make those choices all the kids would be fucking dying of diseases we had almost eradicated. I don’t care if it’s virtue signalling, non vaxxers are fucking morons who have taken advantage of our choice to do the right thing for too long.

How selfless of you.

Don't tell me.. You've had six covid boosters and are still terrified to go near anyone with a snotty nose...?

JerryTubs · 10/02/2026 10:10

Thechaseison71 · 10/02/2026 09:42

Does that mean your baby doesn't see any other babies until they are 13 months plus and had the MMR?

It’s different when you know someone definitely isn’t vaccinated though I should think. You don’t usually know these things so therefore you aren’t faced with the choice.

JerryTubs · 10/02/2026 10:06

TaraC25 · 10/02/2026 09:51

"We have to take the risks"... Nice bit of virtue signalling there. You don't HAVE to. You chose to. Everything is a choice.

Oh kindly fuck off. If we didn’t make those choices all the kids would be fucking dying of diseases we had almost eradicated. I don’t care if it’s virtue signalling, non vaxxers are fucking morons who have taken advantage of our choice to do the right thing for too long.

TaraC25 · 10/02/2026 09:51

JerryTubs · 10/02/2026 09:45

I would just say ‘not until my baby is vaccinated as I’m aware yours isn’t.’ It’s about time these non vaxxers realised their actions have consequences. They’ve been relying on us vaccinating our children so that theirs remain safe and it’s so unfair! We have to take the risks and listen to all these people tell us the risks and we do it anyway, wondering if we’ve made the right choice, feeling guilty, people telling us our kids might be autistic because we vaccinated etc. I feel quite strongly about this. Tell them straight.

"We have to take the risks"... Nice bit of virtue signalling there. You don't HAVE to. You chose to. Everything is a choice.

SinnerBoy · 10/02/2026 09:50

TaraC25 · Today 09:39

But as described by a PP below, lots of children and adults are also damaged from having the vaccine itself.

https://cks.nice.org.uk/topics/measles/background-information/complications/

  • Complications of measles occur in 10–20% of people in developed countries, but the number may be much higher in developing countries.
  • Blindness can result from measles keratoconjunctivitis or other ocular complications, and occurs mainly in children with vitamin A deficiency. Measles is a leading cause of childhood blindness globally.

https://www.cdc.gov/measles/signs-symptoms/index.html

Side effects of the MMR vaccine
Like all medicines, the MMR vaccine can cause side effects, but not everyone will get them.
Common side effects are usually mild and only last 2 to 3 days, they include:

  • a raised, blotchy rash (similar to a measles rash), feeling unwell and a high temperature around 7 to 11 days after the vaccination
  • swollen glands around the cheeks, neck and jaw and aching in your joints (similar to a mild form of mumps) around 2 to 3 weeks after the vaccination
More serious side effects, such as a severe allergic reaction (anaphylaxis) are rare. The person who vaccinates you will be trained to deal with allergic reactions and treat them immediately.

https://www.nhs.uk/vaccinations/mmr-vaccine/

Thechaseison71 · 10/02/2026 09:48

mathanxiety · 10/02/2026 04:26

The OP's baby is still too young to be vaccinated.

The 2yo has not been vaccinated.

The 2 yo has likely been out and about, possibly even to nursery, and could be carrying the virus.

Breastfeeding is not a substitute for vaccination.

The OP's baby is vulnerable.

Go and educate yourself wrt vaccination and contagion.

Most babies are in childcare before getting the MMR though. And no one gets neurotic about that

TaraC25 · 10/02/2026 09:48

FullLondonEye · 10/02/2026 09:40

Having looked as statistics, there have been 957 confirmed measles cases in the last year. That's barely anything compared to the population of the UK.

Yep. It doesn't feel like barely anything though if you or your child are one of the 957 and who either died or suffered lifelong damage from it.

Well no, but you also can't eradicate all risk.
There is risk to taking medication, I've seen some horrendous reactions to prescribed medications, it doesn't mean it shouldn't be taken by anyone ever... It means you have to make a choice and be fairly confident in that.

It is entirely natural to suffer 'survivors guilt' and what ifs when things don't go as expected.

As a new mum, OP is going to face a lot of judged decisions over the coming years, my best advice is grow a thick skin..!

JerryTubs · 10/02/2026 09:45

I would just say ‘not until my baby is vaccinated as I’m aware yours isn’t.’ It’s about time these non vaxxers realised their actions have consequences. They’ve been relying on us vaccinating our children so that theirs remain safe and it’s so unfair! We have to take the risks and listen to all these people tell us the risks and we do it anyway, wondering if we’ve made the right choice, feeling guilty, people telling us our kids might be autistic because we vaccinated etc. I feel quite strongly about this. Tell them straight.

Thechaseison71 · 10/02/2026 09:42

Eviangeica · 09/02/2026 22:11

I’m not going to comment on the family dynamics but there’s no way in hell when mine were babies would they be near unvaccinated children until mine had the vaccines. This is a hill I would happily die on.

Does that mean your baby doesn't see any other babies until they are 13 months plus and had the MMR?