I feel that whenever a news story starts with "nurse says ..." or "Nurse does ..." everyone needs to remember that they are the group of people which contains most of the biggest hypochondriacs on this planet.

Even the pathological forms of hypochondria, munchausens and munchausens by proxy, are far more common in nurses than any other profession.

Yes, they have medical and practical expertise but, yes, they are also likely to be obsessed with being ill and assume they will get illness. If they are told there's a one in a million chance of getting side effects they won't think "that's safe", they will think "that will be me."