Do you think the swine flu was a government conspiracy?

My sister has gotten it in her head that the swine flu was something the government could have mistakenly leaked or purposely tested on humans as some sort of weapon to reduce population. She began thinking all of this because of the fact that all of a sudden you don't hear about the Swine flu in the news anymore so suddenly. She went on to mention that if her thoughts were true that the government would use this weapon on the iraqi. And to put the icing on the cake, she thinks that Johnson and Johnson is involved in the conspiracy. You see, they have a few products to prevent the swine flu from going widespread. She thinks it could have been a measure to promote such companies. Is any of this possibly true?