Most European countries require a 4 year degree for nurses, where the first two years are kind of shared with medical degree.

Kind of shared?

Nursing

https://www.ucc.ie/en/ck710/

Medicine

https://www.ucc.ie/en/ck701/

There is not one single shared course between the two degrees. If you can find a course shared between medical and nursing students in all of Europe I'd be surprised.

Portugal, Spain and Greece as the examples I know.

Nursing is taught at many universities with medical degree, first and second year students tend to share some of the lectures.

Also, because of that, people with nursing degree are able to acquire a medical degree by taking the extra lectures and exams afterwards.

Could you furnish me an example from Western Europe please then? I am familiar enough with the Romance languages to read Portuguese or Spanish if there’s a university with any/substantial overlap between nursing and medicine.

What usually happens is that nursery faculties sometimes share a few lectures with medicine faculties, for things like biochemistry, biophysics.

It is not examples that one finds online, rather on corridors and schedule notes.

What I can provide as an example is that nurses and doctors have equal access to many master and PhDs. Check "condições de acesso" in some of the links from the page and you will find "enfermagem" as accepted degree.

http://www.uc.pt/fmuc/gabineteestudoavancados/formacaoposgra...

AFAIK, most or all US schools have required a 4 year degree for a long time now.