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Small-Scale Question Sunday for February 23, 2025

Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?

This is your opportunity to ask questions. No question too simple or too silly.

Culture war topics are accepted, and proposals for a better intro post are appreciated.

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I suppose I am confused. Development is more important than body weight, but I'll concede the point rather than double down because of my misapprehension

I do genuinely appreciate this, thank you.

To address the rest of your comment, I will point out what I see as potential errors:

  1. The measles vaccine isn't given by itself in most of the world, so you're looking at calculating the combined benefits of simultaneous vaccination for measles, mumps and rubella vs the combined risks.

  2. Restricting the potential harm to just death is incorrect. Even a mild bout of measles has quantifiable harm, and in the link you've provided, they quite clearly mentioned that before vaccination, 3/10 of measles victims had:

Ear infection

Pneumonia

Encephalitis (swelling of the brain)

Subacute sclerosing panencephalitis (a disease characterized by progressive neurological deterioration and early death)

Hemorrhagic measles – includes seizures, delirium, difficulty breathing and bleeding under the skin

Clotting disorder

Death

Pregnant women who are infected with measles can miscarry, deliver early, or have a low-birth-weight baby. People who are immune compromised are at risk of having prolonged and severe illness.

Measles infections can also pave the way for other bacterial and viral infections — even several years later. This may happen because measles infections can wipe out preexisting immunologic memory cells that protect against other infections, such as influenza. Because this same damage to immunologic memory doesn’t happen following vaccination, the measles vaccine also protects the integrity of the immune system.

None of these strike me as very pleasant, leaving aside that that's just one of the three diseases that the MMR shots protect against robustly.

If you wanted to quantify the harms of driving, then you also need to consider disability and not just death, and ideally monetary damages. You also need to look at the benefits, for many people in the US and elsewhere, living without access to a car is debilitating by itself.

I'm left with the conclusion that nobody is willing to discuss the actual risks, they just want to enforce compliance.

As you can see, both I and @throaway05 are more than happy to discuss risks. And so are most other medical professionals, in my experience. The average NHS paediatrician gains nothing personally by taking extra time to talk to patients about their concerns, but does it nonetheless. They don't get to bill you extra for the privilege.

It's unfortunate that your child had a vaccine reaction, but it was a mild one. Even if their wellbeing was your only concern then you should seek to sit a doctor down and go over a proper cost-benefit analysis and even potentially figure out the likely culprit for the previous reaction.