Because much of the housing available to immigrants had no ventilation,many immigrants contracted

Question

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Tuberculosis is a highly contagious disease that spreads through the air. Immigrants living in crowded and poorly ventilated housing were at a higher risk of contracting the disease. Measles and smallpox are also highly contagious but proper ventilation may not have been the primary factor in their spread. Mental illnesses are not contracted through poor ventilation but may be caused by other factors related to living conditions.

Because Much of the Housing Available to Immigrants Had No