Dont be a swine-flu stock pig

NEW YORK (CNNMoney.com) -- Day traders, God bless 'em, will try and make money off just about anything -- even fears of a global swine flu pandemic.

Shares of several relatively tiny and unprofitable biotech stocks surged Monday and Tuesday while stocks of just about every company based in Mexico, the epicenter of the swine flu outbreak, plunged.

But if you are an average investor, you should steer clear of some of these more crazy bets -- which appear to be driven more by panic and greed than common sense.

Some drug companies probably will benefit from increased demand for vaccines if swine flu turns out to be a much more widespread health problem than it already is.