You said it's "History's biggest fraud." You are confused in that either A) you don't know history, or B) you think coronavirus is a fraud (or was presented fraudulently), or both. Either way you look ignorant.
I think you are the one confused my friend. Fraud is intentional deception to secure unfair or unlawful gain, or to deprive a victim of a legal right. Fraud can violate civil law, a criminal law, or it may cause no loss of money, property or legal right but still be an element of another civil or criminal wrong. That does not mean that there is not a real virus... it just means that they intentionally lied about a lot of the stories around it in order to get people into a panic, and lock down the world, destroying global economies. What fraud would you say is larger? I'm curious what others you've got in mind.
"An ounce of prevention is worth a ton of code." -- an anonymous programmer