Liquidsky: In France, most general practitioners and pediatricians are self-employed.. Sometimes they don't have their own secretary (G.P.'s at least) and take down their own appointments, sometimes they have a shared receptionist/secretary between several physicians who pool resources. I have NEVER seen any employing a nurse.
Recall that the costs have to be limited: the price of an appointment to a G.P., for an adult patient and no special case, is 23€ if the G.P. follows Social Security price. That's not a co-payment, that's the full price. On this amount, there is no money to pay for the army of clerical and nursing staff typical of US-style health care.
The only nurses that I've seen working with a doctor, outside hospitals and clinics, were in the organization that does my work physicals.
So in France, it was and is still common for a G.P. or pediatrician to prescribe a vaccine, then the parents would pick it up from a pharmacy, and they would see the doctor again for the injection. So G.P. and pediatricians actually do injections and must know how to do them.
The alternative is to go with the prescription to see a nurse in private practice (it's cheaper, but you don't really care if you have Social Security + private insurance for the co-payment). There are nurses who have a shared receptionist, you make an appointment, show them the prescription and give them the vaccine, and you get your injection.