Your comparison of this case with Mary "Typhoid Mary" Mallon is valid. About a week ago I caught a program on PBS about her case. She simply could not or would not understand how she could possibly be a carrier without herself being ill. When a doctor tried to explain it to her she went after him with a large serving fork! She was incarcerated for a time, and then released on her promise to never work as a cook again. She broke that promise and sparked another deadly outbreak. This time she was locked up for 20+ years until her death.