Vaccines are excludable (it is easy to largely prevent people from accessing them) and rivalrous (most of the benefit of the vaccine goes to the person being vaccinated, as transmission is reduced but still significant) and hence while they may have positive externalities they are not public goods.
True, my mistake. Herd immunity is the public good. I would still suggest vaccines are the cheapest, safest, fastest, most equitable route to herd immunity.
Vaccines are excludable (it is easy to largely prevent people from accessing them) and rivalrous (most of the benefit of the vaccine goes to the person being vaccinated, as transmission is reduced but still significant) and hence while they may have positive externalities they are not public goods.
True, my mistake. Herd immunity is the public good. I would still suggest vaccines are the cheapest, safest, fastest, most equitable route to herd immunity.