A peer reviewed study has found a correlation between Covid vaccine administration and excess mortality in Australia. While correlation does not imply causation, it indicates a plausible causation that should be further researched, which it has previously and causation has been confirmed including in Australia.

"The study explores the relationship by Australia State between COVID Booster Vaccinations and excess deaths. There is evidence of a very strong correlation in ordinary least squares regression analysis. Cross-validation tests support the strength of the regression relationship. The results suggest that it would be worthwhile to explore these associations in greater depth as it is an important public health issue," the study said in the 'Abstract' section.