Mosquitoes contract the illness by feeding on infected birds.

CNN: CDC expert gets West Nile bug -- literally

Since the 1990s Sempra's predecessors had been feeding gas to Baja and won the contract to outfit the town of Mexicali with gas lines.

FORBES: Gas Guzzler

Optimism spread to the June contract calls where buyers of the options are leading the feeding frenzy.

FORBES: Rumors Spur Fever In Alcoa Options, Speculation In CECO