Nellie has a family history similar to Lorene Alhern's. Nellie's mother died at an early age from breast cancer, as did her mother's sister. Nellie is not yet 35 but has started having annual mammograms. She has also been tested or BRCA1 and BRCA2 mutations. She has a BRCA2 mutation and is considering prophylactic surgery. Her younger sister, Anne, doesn't want to know the results of Nellie's genetic testing because if Nellie has a BRCA2 mutation, then there is a chance that Anne could have inherited the same mutation from their mother. Required:
a. Does Nellie or Nellie's doctor have an obligation to tell Anne about the test results?
b. What about Nellie's older brother? Should he be told? There are personal and medical benefits and risks to consider here.