Someone has a car accident. One week later they die of a brain haemorrhage. The cause of death is the brain haemorrhage AS A RESULT OF THE CAR ACCIDENT.
Do you understand? Covid destroys the lungs, lowers blood O2 levels, damages other organs, causes internal bleeding, makes immune system attack its own body.
When all of this happens and a person has a heart attack and dies, this is due to the covid destroying the body.
Cause of death is heart attack as a result of covid.
No covid, no heart attack!