How did people transfuse blood in 1800?

Answer:

Although there were a few failed attempts to transfuse different animals' blood into humans before the 20th century, the modern medical practice did not begin until World War II.


Today there are many doctors (and some entire hospitals) who refuse to do this because of the many adverse reactions and diseases which a blood transfusion can invoke.

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witnesses abstain from blood products transfused or otherwise injected and I can assure you that blood transfusion science and the principle of fluid replacement in 1800 was in it's infancy at best

First answer by ID2393911466. Last edit by Catoblue. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 2 [recommend question].