Eighi Hiastake, of the San Francisco Department of Public Works, washes a city sidewalk with a mixture of water and disinfectant July 15, 2014, in San
Eighi Hiastake, of the San Francisco Department of Public Works, washes a city sidewalk with a mixture of water and disinfectant July 15, 2014, in San Francisco. (Marcio Jose Sanchez/AP)