So why post anything at all? This is a community and a discussion. If you want to take part, then please share evidence that has lead to you rationale in making the statement.Never said it was developed in the 70's, said a vaccine used in the 70's that was rushed due to an "epidemic".I don't need to Google it, I saw and lived it in NYC.
I don’t understand the obtuse attitude you’ve taken in your response. If you don’t want to take part in the discussion, then don’t post anything to which someone may reply.