How did William Shakespeare die?

Shakespeare's death is a mystery. Consequently, there are
a number of theories about his death. Fifty years after Shakespeare's death, John Ward,
a Stratford vicar and physician, claimed that Shakespeare, Michael Drayton,  and Ben
Jonson "had a merry meeting, and it seems drank too hard, for Shakespeare died of a
fever there contracted." 

Another theory is that
Shakespeare died of a cerebral hemorrhage, something sudden. Evidence for this is that
Shakespeare was revising his will and it seems possible that he had not finished
revising it. 

Shakespeare's death could also have been
caused by typhus, influenza, alcoholism, heart attack, etc. Yet another theory is that
Shakespeare died of some contagious disease - this would make sense if the claim that
his grave was put 17 feet underground was true.