River Ambulance Service
{{short description|Transport for smallpox patients in London}}
{{Use dmy dates|date=March 2025}}
{{Use British English|date=May 2020}}
The River Ambulance Service was established in London by the Metropolitan Asylums Board to transport patients with smallpox to isolation hospitals. Paddle steamers such as the Geneva Cross were used as ambulance steamers.{{r|SDF}}