evidence: There remain some community concerns about the safety of all pre-existing vaccines, including many that have been rigorously tested and employed for years. [...] It is important to recognise that coercive vaccination can be justified. This is easy to see by comparing it to other coercive interventions in the public interest. [...] But there is an important additional feature of vaccination. If a vaccine were deemed to be safe enough to offer on a voluntary basis without payment, it must be safe enough to incentivise with payment because the risks are reasonable. It may be that those who are poorer may be more inclined to take the money and the risk, but this applies to all risky or unpleasant jobs in a market economy. It is not necessarily exploitation if there are protections in place such as a minimum wage or a fair price is paid to take on risk.