Alright, time to piss people off. Chemistry major here (graduated) I will try to do my best to sum up a thread I was in the other day trying to explain shit to people.
First, how do vaccines work? Basically, in your body you have immune cells and antibodies. All cell signaling is done with proteins which have a binding affinity for other proteins or molecules. Think of it like a very specialized magnet with hundreds of poles which make it stick only to specifically arranged things. So when your body is exposed to foreign proteins or certain toxins (which are usually proteins) it recognizes them and begins to build defenses against them. You have immune cells which try to "eat up" the virus/bacteria and you have antibodies which are protein structures which stick to the virus/bacteria until it becomes hopelessly tangled and ineffective and far easier to be eaten by the immune cells (white blood cells, there are more but this isn't an academic paper).
Vaccines contain a microorganism in a weakened or killed state, or proteins or toxins from the organism.
So when you get a vaccine your body already has made the schematic for the defenses it needs to fight it.
Autism/vaccine connection: possible but unlikely, MMR vaccine can cause inflamation and be unpleasant, but that is your body's immune system reacting to a perceived attack.
My pet theory as to the "cause of autism" and its rise to prominence since the 80's is that the symptoms of autism are eerily similar to early childhood neglect.
Neglected children demonstrate lack of emotional regulation, understanding emotional expressions by others, and difficulty in distinguishing emotions. When posed with problem-solving tasks, neglected children reacted with anger and frustration, and were less enthusiastic with completing a new task. Neglected children often have distressing memories of their past to which they regulate their emotions by suppressing them.
Childhood abuse and neglect can lead to developing posttraumatic stress disorder (PTSD), depression, and anxiety disorders later in life. Although major depression is not readily seen in younger children compared to adolescents, it is still prevalent.
Strong empowered women dumped their kid in daycare while they went to work. The kid was left to cry in a corner for 8 hours a day except when occasionally smacked by the worker trying to get them to shut up. The person now doesn't like strangers or people in general, doesn't like being touched, and doesn't understand people's emotions.
<if that's true then why don't researchers say so?
Because the people who fund autism research are the parents of autists. Are you going to pay someone to tell you that you fucked up your kid by not loving them and caring for them in their developmental stages?
Then there is the "vaccine related injury" argument. Which CAN happen. Here is some math since people are, in my experience, unable to think from a clinical perspective unless trained to do so.
From the establishment of the National Vaccine Injury Compensation Program in October 1988 through January 2018, just over 19,000 individuals and families have filed claims for compensation under the VICP. With approximately 4,000 claims remaining unresolved, 5,825 claims have resulted in awards of compensation, while 11,113 claims have been denied.
About 4 million people are born each year in the USA, data above is from 1988-2018 which is 30 years. 30 years X 4 million births/year= about 120 million people born in the US since 1988, and lets say 90% are vaccinated that gives us 108 million people
19,000/108,000,000= .0176% rate of "vaccine injury" which is the CLAIMED rate, not the rate which were deemed valid.
So yeah, .0176% of people have something bad happen, but we don't have polio, measels, mumps, rubella, smallpox and many other terrible diseases which were pretty common (orders of magnitude more than .0176%) prior to vaccination.