Well, some vaccines are therapeutic in nature, where it's beneficial to take it while you have symptoms. Some vaccines are only helpful before you get a symptom, for example rabies.
I guess the above made it sound like there definitely can't be a therapeutic vaccine. But unclear about a preventative vaccine.
It's more like saying "I miiiiiight be able to cure cancer, that's a bit tough and would require a lot of luck... I definitely can't cure death though."
That would be an HIV Vaccine
Well, some vaccines are therapeutic in nature, where it's beneficial to take it while you have symptoms. Some vaccines are only helpful before you get a symptom, for example rabies.
I guess the above made it sound like there definitely can't be a therapeutic vaccine. But unclear about a preventative vaccine.
That's just pedantic
It's more like saying "I miiiiiight be able to cure cancer, that's a bit tough and would require a lot of luck... I definitely can't cure death though."