I think the problem not only for vaccine but anything else. Right now many people without specific expertise talk too much about things that they even didn't understand using their biases or personal believe that not supported by empirical evidence.
Beside vaccine, school must shape the way of thinking obviously on critical thinking toward which is the information is true, valid in context, and which information is not true, incomplete, leading to misunderstanding especially in digital era that so much information come to us.
With better understanding people not easily believe on nonsense like this.
Good example of instant karma
https://www.google.com/url?sa=i&source= ... 5415227551