Nurses may not be "as qualified" as doctors, but they sure are closer to being qualified that pretty much everyone else in society, including the politicians. The nurses administer the shots, and have more face-to-face time with patients than doctors do. It's not as if they're in the dark about medical issues.
Eh...I don't think that's true.
Specifically, as I touched on in my previous post, there are different types/levels of nurses, some may be closer to "being qualified", but many are not.
CNA (no degree required, can be completed with a 4-week training course)
LPN (no degree required, can be completed with a 1-year training course)
RN (requires a Associate or Bachelor of Science in Nursing, plus licensing)
NP - Nurse practitioner (requires a completion of all of the steps to become an RN + 1 year experience practicing as an RN, and then getting a Masters Degree in Nursing Science)
No offense to the positions, they're a position that's often thankless and is a tough job I wouldn't want to do... But, CNAs' and LPNs' opinions shouldn't be regarded as particularly valuable on the topic of vaccines and immunology.
RNs, maybe to a certain degree as they do have experience administering immunizations and medications (in a hospital setting, if that's where they work)
Nurse Practitioners would probably be the closest...however, even their focus (with regards to disease prevention and disease management) is on acute and episodic illness.
(which is why when you go to an UrgiCare or sometimes even a Family Doctor's office, they'll have an NP on staff who can cover things like sinus infections, strep throat, ordering certain tests like x-rays)
To use a "tech comparison" (I like to use those because that's the field I work in)
Immunologist MD/PhD = Technical Lead/Sr Software Engineer for a major tech corporation
Nurse Practitioner = Good seasoned mid-senior level developer/database administrator who can be fully trusted to tackle some big projects on their own, but would still have to consult with the tech leads on some projects/issues.
RN = IT Help Desk... a tough job (that should be commended), dealing with (sometimes difficult) people "where the rubber meets the road", so to speak... has more knowledge than your average person on tech issues and can even help solve some of them themselves, but great at gathering the info and getting that info to the right people to look at.
LPN = Geek Squad member from Best Buy. Can handle the very basic and obvious stuff. If you need someone to swap out a graphics card or replace a power supply, they can handle that.
CNA = When your Aunt talks about her friend Marge from church who has a nephew that's "really good with computers"...if you need someone to install and run AVG for someone else who's completely tech-illiterate, Marge's nephew is your guy.
You wouldn't trust a CNA or LPN on matters of advanced immunology for the same reason you wouldn't task Marge's nephew or someone from the Best Buy Geek Squad to look into how the Experian breach happened.