I don't know what is causing these deaths but the vaccines must be suspect because they came on the scene in 2021 when this problem started, some doctors say the spike protein negatively affects immune systems and this excess death phenomenon is world wide except for Africa. It should be thoroughly investigated.
Link: https://www.thegatewaypundit.com/2023/01/australia-death-heart-attack-surges-17-2022-changed/