At this time the director of health was given charge of the sanitation of this prison.
By remedying overcrowding, improving drainage, installing sewers and regulating diet along scientific lines, the rate was reduced in six months to 70 per 1000, and there it stuck.
A systematic examination of the stools of prisoners was then made.

Eighty-four per cent were found to be afflicted with at least one intestinal parasite.

Fifty per cent had two or more, and twenty per cent had three or more.

Fifty-two per cent of the total had hookworm.

Active treatment for the elimination of these parasites was begun in one barrack, and after the work was completed it was noted that there was much less disease there than in the remainder.