5. Emergency vaccination
The great thing about the MMR vaccine is that you can have it on short notice. Picture the scenario, you grew up with a suppressed immune system for one reason or another, thus, you were unfit for vaccination according to your doctor and thus unable to get the MMR vaccine at a young age. Then, once you were in adulthood, you were inadvertently exposed to measles. Perhaps due to an outbreak in your office.
In most cases, you’d just have to hope you don’t develop the disease. However, with measles, you can get a vaccination up to 72 hours after your first contact with the disease. That’s not to say that you won’t develop the disease, you likely still will as you were unvaccinated at the time of contact, but it will manifest in a less severe form with dulled symptoms.
If you get a measles vaccination after contact but the disease still develops, it will also subside faster than if you hadn’t been vaccinated following your exposure. This makes the MMR vaccine a good emergency measure in case you’ve been exposed.