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Yet more evidence of consulting firm McKinsey's lucrative relationship with the Morrison government has emerged, after the blue-chip company inked a deal worth $2.2 million with the Department of Industry, Science, Energy and Resources to provide professional advice on a business case for manufacturing an mRNA vaccine onshore.

The contract, which ran from late December to March, and was worth nearly $25,000 a day, indicates the government has been considering the possibility of locally manufacturing mRNA vaccines for some time.

Currently, Australia is only producing the AstraZeneca vaccine locally, and experts have slammed the government for not investing in local manufacture of mRNA vaccines.