Although less common than Salmonella or Campylobacter, Shigella is a significant cause of foodborne disease. Shigella is responsible for 10% to 20% of cases of bacterial foodborne illness each year in the United States.
A century later, it continues to be a marvel in modern engineering. The LA Aqueduct brought water from the Owens Valley hundreds of miles away to a growing area in need of additional resources to sustain its people and their endeavors, helping spur an economy that today rivals that of many nations.
Early on in the history of the city the Aztecs built causeways and canals for transportation to and from the city. A causeway is a raised road that allowed the people to easily travel over the swampy and wet areas.