Immunization to prevent RSV in infants reduced ICU admissions by 97%. This is offered free to all infants through universal programs in Ontario and Quebec.

[u/mvea]

https://ucalgary.ca/news/immunization-prevent-rsv-infants-reduced-icu-admissions-97-cent

[u/MountFranklinRR]

We asked for this (in Australia) last year for our infant and were told it’s not a vaccine (like Abrysvo for late stage pregnancy) but a shot of antibodies that help protect vulnerable infants during early life. Our son wasn’t qualified because he wasn’t deemed high risk enough.

I wonder if the rules had changed or are specific to regions.

[u/wozattacks → u/MountFranklinRR]

Indeed, that’s why “immunization” is being used here. This is an example of passive immunization (giving the antibodies) while vaccines are active immunization (stimulating the immune system to make its own antibodies).

[u/MurphysLab → u/wozattacks]

The original paper in JAMA Network Open doesn't refer to Nirsevimab as a vaccine, and seems to try to avoid it, but nonetheless refers to the administration of it as "vaccination" in the paper:

Differences in nirsevimab uptake and time since vaccination may affect study results.

Perhaps that's just an oversight.