If a member of the crew became seriously ill, there wasn’t a lot to be done. Advice could be given by medical officers at UBootwaffe command via radio. However, on special missions many boats maintained radio silence and could not ask advice.
Charles McCain is a Washington DC based freelance journalist and novelist. He is the author of "An Honorable German," a World War Two naval epic. You can read more of his work on his website: http://charlesmccain.com/ View all posts by Charles McCain