It doesn't need to be 100% effective in humans, it just needs to slow transmission enough such that the rate of incidence declines in the direction of eradication.
This is called moral hazard, and people love to worry about it. Usually though (the relevant example here is PrEP, or birth control) it's fine and enables people to live their lives with fewer risks to their, and others, wellbeing
No, I'm not talking about moral hazard at all. I'm just talking about the poor effectiveness. If it were highly effective, like PreP and birth control are, there would be no issue in my mind.
Nor the past. Seatbelt requirements did result in riskier driving. It also, on the net, saved lives. Same for every other vaccine, or e.g. birth control in respect of teenage and unwanted pregnancies.
> Seatbelt requirements did result in riskier driving. It also, on the net, saved lives.
Okay? This seems unrelated. A better analogy would be if they had invented airbags and then people stopped wearing seatbelts. (like taking a 44% effective vaccine and then stop using PreP)
> Same for every other vaccine, or e.g. birth control in respect of teenage and unwanted pregnancies.
Also unrelated. Birth control is highly effective, and in fact is statistically more effective than condoms (since condoms can slip and/or break). My issue is the poor effectiveness of this vaccine.