In the end , 350 white workers had died compared to 4,500 black workers .
While medical care was provided to all , housing was not provided to black workers , many of whom had to live in tents and tenements outside the mosquito - controlled zone .
350 white workers had died compared to 4,500 black workers .
While medical care was provided to all , housing was not provided to black workers , many of whom had to live in tents and tenements outside the mosquito - controlled zone .