| Anthrax (4) |  |
| Immunological disorder (11) | |
| Infectious disease (3) | |
| Influenza (4) | |
| Measles (1) | |
| Plague (3) | |
| Q fever (2) | |
| Syphilis (1) | |
| Tuberculosis (2) | |
| Typhoid (4) | |
| Yellow fever (4) | |
| Anthrax (4) | |
| Immunological disorder (11) | |
| Infectious disease (3) | |
| Influenza (4) | |
| Measles (1) | |
| Plague (3) | |
| Q fever (2) | |
| Syphilis (1) | |
| Tuberculosis (2) | |
| Typhoid (4) | |
| Yellow fever (4) | |
because malaria yellow fever dysentery and other diseases claimed the lives of approximately 20000 workers. The U s. took over the project in 1904 and implemented some sanitation practices--including draining wetlands
The heavy rainfall insures permanent stagnant water where the larvae of the yellow fever and malarial mosquitos thrive in countless millions;
Yellow fever had been endemic for hundreds of years and epidemic when new material was available. Malaria was ever present consuming the life blood
which yellow fever has been banished for more than six years; where the mortality from typhoid fever and dysentery has been reduced to the minimum;
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