Die
If an illness or disease is the cause of one's death, usually the verb ‘die’ is followed by the preposition ‘of’.
Incorrect : The man died from cholera.
Correct : The man died of cholera.
Causes like 'hunger’ and 'thirst’ are also preceded by the same preposition.
For example:
Many people died of hunger during the famine.
Note: This verb may also be followed by other prepositions:
Many passengers died from their wounds.
He may die from overwork.
They died by violence.
Many Soldiers died in battle/poverty.
They died for their country.
The child died through neglect.
He died on the scaffold.
He died at the stake.
