Mocking? The safety of vaccines has been continuously, rigorously studied by scientists the world over, and specifically unlikely vectors of danger have been studied and restudied because they became specific targets of the anti-vax movement as the source of danger. Ingredients which were proven to be non-dangerous were removed to try and keep vaccination rates up anyway.

The anti-vax movement is mocked because everything else was tried. And frankly you must be terminally online to think this is a problem, because the medical establishment bends over backwards to try and ensure kids are vaccinated. The anti-vaxxers get mocked in exactly one place: the internet, on Twitter, where they aggressively seek out and try to belittle others are spread misinformation. And then retreat into accusing people telling them off or correcting them that they're "causing them to reject science" as though they didn't start from the same position they already held.

It was actually annoyingly difficult when my son was born to stress to the hospital to give him all the routine vaccines as soon as possible, give him the Vitmin K etc. because the medical establishment doesn't know if a routine protective intervention, presented the wrong way, is going to lead to that child never receiving appropriate basic precautionary care.