How did typhoid fever affect philadelphia in the 1700s?

In the 1700s, typhoid fever significantly impacted Philadelphia, contributing to high mortality rates and public health crises. The disease spread rapidly due to contaminated water sources and poor sanitation, exacerbated by the city's dense population. Epidemics, particularly in the 1790s, prompted city leaders to improve water supply and sanitation systems, highlighting the need for public health reforms. These efforts laid the groundwork for modern public health practices in the city.