One of the answers to your last question about this guy advised you not to go running after him to make a date.
Did you go running after him, and contact him to make a date, or did he contact you?
If he contacted you to make the date, and then he cancelled due to illness, I would believe that his reason for cancellation is genuine.
If you contacted him to make the date, and then he cancelled, I would be very disinclined to believe his reason for cancelling.
In this case, you should leave him alone. Make no reference to the cancelled date. You've lost out on this one, and mentioning it to him is only going to make you look desperate.
Cut your losses and look for somebody else who cares enough to ask you out in the first place, and then cares enough to honour the arrangements.