Covid vaccine

[rothschild]

I'm really confused about this covid vaccine,  and I hope that someone who is smarter than I,  and has a lot of patience can explain it to me.  If you've already had covid, why would a vaccine be necessary?  Also, if you tested positive for covid more than once, what makes you think that the vaccine will work?

Here's a question I think is even more important: if vaccines are safe, as we are constantly being told, why have the manufacturers been shielded from liability?

You are an idiot.   Vaccine manufacturers have been shielded from liability since the 70's.  Look it up. 
Meh

Under 42 U.S. Code § 300aa–22 - Standards of responsibility, a vaccine manufacturer has immunity as long as the vaccine was "properly prepared and was accompanied by proper directions and warnings", meaning you have to prove negligence.

Under the PREP Act, a person or company is only liable if they are found guilty of "willful misconduct", which is almost impossible to prove.