Quote from Mr. KISS:
Let me give a little insight. The trade I am looking at is a hedge against the Swine Flu becoming a major disaster like the Spanish Flu of 1918. One might argue if there is that big of a disaster, the markets will tumble but a study done by Fidelity for all the major flu outbreaks since the S&P was created showed the markets didn't crash, even during 1918, not even close.
The expiration would be in December or January giving plenty of time for the flu to take hold and the demand for vaccine to go through the roof. So at 30 days out, the event will already be in progress and most likely the stock price will only continue to rise.