How did Rudolf Virchow explain the typhus outbreak in Upper Silesia?

In 1848, the Prussian government commissioned Rudolf Virchow to investigate a typhus outbreak in Upper Silesia. In his subsequent report, Virchow concluded that the epidemic was not merely a medical issue but was fundamentally caused by poor social conditions and government negligence.1

By identifying these systemic failures as the root of the crisis, Virchow demonstrated his early commitment to the idea that public health is inextricably linked to social and political reform. This experience significantly influenced his later career, during which he became a vigorous advocate for medical and social improvements, including advancements in public health infrastructure such as sewage systems and hospital design.1