This is the 7818th most frequent Dutch word.
doodde
"Killed" (past tense of "kill").
Here, "doodde" is used as a simple past tense indicating an action performed by the subject (the hunter) to end the life of the rabbit.
De jager doodde het konijn met een geweer.
The hunter killed the rabbit with a rifle.
In this sentence, "doodde" is used metaphorically to express elimination or destruction of an abstract concept—his chance at success.
Zijn fout doodde zijn kans op succes.
His mistake killed his chance at success.
"Doodde" in this example is applied to describe the action of terminating the state or existence of the virus as executed by the medicine.