I wonder if there was any reason it was released without testing except on mice?

of course there was a reason. probably multiple.

what antivax people don't understand is that vaccines are extremely well understood, especially boosters for vaccines which have already been through testing.

it's not like a vaccine for a new virus is 100% experiment, or even 1%. a vaccine is like a Rubik's cube; a known thing which you hope is in the right configuration to do its job. if it's in the wrong configuration then you're basically vaccinated against nothing or you are vaccinated against something you didn't need a vaccine for.

once you've built a few million Rubik's cubes you can stop doing human testing and quality control on every single one of them.

like Rubik's cubes, vaccines are made from known and understood ingredients, each with known and understood behaviors.

vaccines are inert to every part of a human body, except the immune system, by design.

vaccines are not an unknown thing, which could be made from any random junk on the shelf, and which may or may not kill you; vaccines are safe.

the amount of scare-tactic half-truth coming from antivaxxers is nuts because they are just repeating stuff they've heard that they don't understand but that sounds super bad on the surface, and then letting their fear override everything else then repeating the half-truth to the next person.

If mRNA vaccines are so extremely well understood, why was so much misinformation spread by public health officials about them?

We were told:

- The mRNA and spike protein break down within a few days. Now studies are finding them still in the body months later and the CDC silently memory-holed the statement on their site about them being short-lived.

- The mRNA and spike protein remain localized to the injection site. Now studies are finding them all over the body.

- The spike protein is harmless. Now studies are finding it's toxic.

Source on any of those claims?

Yes? Because trials would make the formulation less timely, and therefore less efficacious.

They've done this on the flu shot for YEARS.

Or are you implying that a reason for fast tracking must necessarily be nefarious?

Something doesn’t have to be necessarily true for it to have a high probability of being true.

A vast conspiracy theory involving tens of thousands of actors isn't possible.

Tens of thousands of people show up to bag groceries each day, doesn't make it a vast conspiracy. Some peoples job is to do bad science and shill for big pharma, go figure.

The big reason is to make it available before the fall, when people spend more time indoors and spread it more. Also you don't really need to test it, it's known to be safer than the disease.