Milwaukee

Milwaukee is the largest city located in the state of Wisconsin.

History
While on the run from Thaddeus Ross, Bruce Banner hid in Brazil as a soda factory worker. While there, he cut his finger and a drop of his gamma-irradiated blood fell into a soda which was packed for shipping. In Milwaukee, Wisconsin, a customer drank from that tainted soda and passed out. This alerted Ross' Unit to Banner's location.

Trivia
The customer who ingested the tainted soda was Stan Lee in his cameo appearance in The Incredible Hulk.