What decision-making role will the Australian Parliament have in relation to the proposed International Health Regulations amendments?

There’s a debate raging about whether proposed amendments to the International Health Regulations (IHR) will involve countries such as Australia ceding sovereignty to the World Health Organisation (WHO). We’ve heard many platitudes, for example, from Senator Gallagher who claimed in the Senate in December 2023:

‘Let me be clear that the proposed treaty will not undermine Australia’s sovereignty in respect to health policy and will not operate to prevail over Australian law.